Clean Install Killer Control Center ** This Solves Many Killer Control Center Issues! Try This First If Unable To Update Or Install.**

4.4 

Clean Install The Killer Control Center

There have been many reports of issues with the Killer Control Center which can be resolved by performing a clean install of the Killer Control Center, as opposed to an update install, where the latest version is installed while an older version is in place. When troubleshooting, this is a good place to start. Here are the steps to perform a clean install of the Killer Control Center:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, or those using a Wireless-N device, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Thos using Windows 10 Version 1803 and above should, and not using a Wireless-N adapter, should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd. This includes all Wireless-AC Wi-Fi adapters, which are labeled as "Wireless-n/a/ac." "Wireless-n/a/ac" indicates a Wireless-AC adapter, not a Wireless-N adapter. 
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Restart your machine by clicking Start > Power > Restart
  5. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  6. Restart your machine by clicking Start > Power > Restart
  7. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  8. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  9. Restart your machine if the installer requested a restart.
  10. Test to see if the issue is resolved.

If you cannot install the latest Killer Control Center because you receive an error that says that the current package cannot be installed with one of our older packages, even after using this clean install guide, please see our guide for "Cannot Be Installed With" Errors. 

If you encounter any other issue with installing the latest Killer Control Center, click here for our guide for using the Microsoft Tool for issues that block a program from being installed. 

Priority Not Set Correctly For Game/Application

5.0 

Priority Not Set Correctly For Game/Application

Some users may find applications, games, or services whose priorities are not set correctly in the Killer Control Center. Although the Killer Control Center usually has the correct priorities preset for most applications, games, and services, there may be some that we have missed, and that the detection engine also does not find. 

If you find one of these, first make sure that you have the latest application priorities by clicking the Download Latest App Priorities in the Settings page of the Killer Control Center. This will ensure that you have the latest priorities that have been changed since the most recent version of the Killer Control Center was released.

If the priority for the application is not correct after updating, please send us an email to killersupport@rivetnetworks.com with the following subject - "KCC Priority." In the body of the email, please include the following:

  1. Application Name
  2. Application Executable (This can be found by hovering over the application in the Killer Control Panel, or looking in Task Manager under the Details tab. It will be a file that ends in .EXE. 
  3. Current Priority 
  4. Suggested Priority (1-6, remembering that, when using DoubleShot, Priority 6 uses Wi-Fi)

You can change the priority manually in the Killer Control Center by clicking the drop down box beside the application name, and selecting a number 1-6, with 6 being the lowest priority. 

Which Killer Control Center Should I Install?

5.0 

Which Killer Control Center Should I Install?

Users may notice that we often host more than one version of the Killer Control Center available for download from our website. This article will summarize the difference between the versions available, and hopefully give the user an idea of which installer they should download and use. 

A note on the Killer Network Manager - The Killer Network Manager is our deprecated performance suite. It does not contain current drivers. Users are free to use the Killer Network Manager if they like, but, as it is no longer in development, the first step in troubleshooting should be to uninstall the Killer Network Manager and install the Killer Control Center.
A note on finding your Windows version number - You will see Windows version numbers referenced in the following information. You can find your Windows version by clicking Start, then type winver and press Enter. You will see a box with information about your Windows install, including the Version, which is probably 1709 or 1803, as of June 5 2018. 
A note on device compatibility  -  The E2100, 2100, K1, M1, and Xeno Pro are legacy devices, and no longer receive driver updates. They are not supported with either of these packages.

The current Killer Control Center versions are as follows, as of August 3, 2018:

 

Killer Software Package - for Windows 10 1803+

Release Notes

 

Device Compatibility: Killer Ethernet E2200, E2205, E2400, E2500 / Killer Wireless-AC 1550, 1435, 1535, 1525 

OS Compatibility: Windows 10 Build 1803 April 2018 Update and Later Only

What is this? This version is a major update. This is our most recent release, which has been tested primarily with, and optimized for Windows 10 version 1803 (April 2018 Update) and Windows 10 1809 (October 2018 Update). This package contains the latest drivers for all current Killer Networking devices, except for Wireless-N adapters. Also included is the latest Killer Control Center performance suite. A Killer Wireless-AC 1550 is not required - all supported Ethernet and Wireless-AC adapters will work with this version. The installer will first install device drivers, and then redirect to the Windows Store to install the Killer Control Center software. Please note that the version number listed here is the version of the installer. The version of the Killer Control Center that the Windows Store installs will be different. Machines with the Killer Wireless-AC 1550 and Killer E3000 will receive the Killer Control Center 2.0 user interface, while older adapters will receive the same optimizations to the service, but a slightly updated version of the original Killer Control Center user interface.

What's new from the previous release? Killer Control Center 2.0 for machines with a Killer Wireless-AC 1550 (including 1550i and 1550s) and E3000 adapters. Many backed/service updates for all devices.

Who should use this?  All currently supported Killer Networking adapter users who are using Windows 10 version 1803 (April 2018 Update), except those using Wireless-N adapters. Those using the Windows Insider Preview versions of Windows 10 are also encouraged to use this version, and provide us with any feedback, should you encounter any issues.

What if this will not install?  Click here for troubleshooting steps. If you are unable to install this version, please try installing version 1.5.1859 above after submitting your install log. It is important that you submit your install log before installing 1.5.1859, or the install log will reflect the results of that install instead of reflecting the results of your attempted install of the UWD version.

Special conditions for this release: This version will install on versions of Windows 10 that are older than version 1803 (April 2018 Update), but many things will not function well. We highly recommend installing this version only on Windows 10 1803, 1809, or newer.

 

 

Killer Control Center 64-bit - for Windows 7, 8.1 & older Windows 10 versions

Release Notes

 

Device Compatibility: Killer Ethernet E2200, E2205, E2400, E2500 / Killer Wireless-AC 1550, 1435, 1535, 1525 / Killer Wireless-N 1102,1103,1202

OS Compatibility: Windows 10 (all builds), Windows 8.1, Windows 7

What is this? This is our previous release, which was well tested and troublefree on all versions of Windows 10, including 1803 and 1809, except some edge cases with later hardware and 1803+.  This package contains the latest drivers for all Killer Networking devices, except for the Killer Wireless-AC 1550, as well as the Killer Control Center performance suite. The included driver for the Killer Wireless-AC 1550 is not known to be problematic, but our other package includes a more recent driver for this device. 

What's new from the previous release? A new, updated driver for the Killer Wireless-AC 1550. 

Who should use this?  All Killer Network adapter owners who are using Windows 7 and Windows 8.1, as well as those using Windows 10, who have not yet updated to Version 1803 (Windows Spring Update) or later, or who would prefer to not install the Killer Control Center through the Windows Store. Also, all Killer Wireless-N network adapter users, including Windows 1803 and 1809 or later, should use this install.

What if this will not install? Click here for troubleshooting steps

Special conditions for this release: Unlike the other package, this release uses a regular installer, and does not go through the Windows Store.

 

Errors When Installing

There have been many reports of issues with the Killer Control Center which can be resolved by performing a clean install of the Killer Control Center, as opposed to an update install, where the latest version is installed while an older version is in place. When troubleshooting, this is a good place to start. Here are the steps to perform a clean install of the Killer Control Center:

  1. Make sure you have the current installer handy to install. 
  2. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  3. Restart your machine by clicking Start > Power > Restart
  4. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  7. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  8. Restart your machine if the installer requested a restart.
  9. Test to see if the issue is resolved.

If you are unable to resolve the issue with a clean install, please contact support so that we can help you out!

 

"Cannot Be Installed With" Errors

 

"Cannot Be Installed With" Errors

Users may encounter the following errors, potentially among others, when attempting to update or install the Killer Control Center:

  • Killer Performance Driver Suite cannot be installed with Killer Ethernet Performance Suite (or similar) and you have already tried our Clean Install Guide.
  • Any other install errors where the current suite cannot be installed with another of our products, after you have tried our Clean Install Guide.

Even if you are in the process of updating the Killer Control Center, the issue is that the installer is encountering parts of an old Killer Performance Suite, and is unable to uninstall them. 

This issue can be resolved by following these steps:

  1. Download the latest Killer Control Center and keep it somewhere handy - https://www.killernetworking.com/driver-downloads/kb/faq/22-update-killer-control-center
  2. Double-click the installer for the latest Killer Control Center. Let it fail. Do not restart your computer, even if asked. 
  3. Download Microsoft's tool for fixing problems that block programs from being installed or removed - https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed 


    microsoft uninstall fixit2

  4. Once you have both of those things downloaded, uninstall all Killer products from your Apps and Features menu, which you can access by right-clicking Start.


    right click start uninstall killer

  5. You may encounter that same error and that is fine. When you do, skip that application, and uninstall any other applications from "Killer" including "Killer Drivers."

  6. Now run the tool from Microsoft. 

  7. For the first menu, you will simply click Next


    ms uninstall fixit 1

  8. Then after a moment of "Detecting Problems", it will ask if you are having a problem installing or uninstalling a program. Even if you are trying to update or install the Killer Control Center, the actual problem is happening when the installer attempts to uninstall the old suite, so you will choose Uninstalling


    ms uninstall fixit 2

  9. At the next prompt, the program will ask you to choose from a list of programs. Find the Killer-related program in the list. It may not be the same as the one in this screenshot, but choose whichever Killer suite the program finds, and then click the Next button. 


    ms uninstall fixit 3

  10. The tool will then proceed to erase the parts of the Killer suite that the installer was unable to remove from the registry. If the program is not listed, you have the option of choosing "Not Listed", and the tool may still find the pieces in the registry that need to be removed. However, it is hard to duplicate that particular scenario, so providing a screenshot is not possible, but it is fairly self-explanatory. 
  11. Once the tool has finished doing its work, you will want to restart your machine once more, and then install the latest Killer Control Center, which you downloaded previously.
  12. If  you are unable to fix the issue with this guide, try running through it again, but this time, choose Installing at step 7. This may help clear corrupted files that are not related to Killer components, but are still preventing the install.
  13. If you have any further questions, feel free to contact support at the link below! 

Slow Ethernet Upload (1.0 Mbps or less after Windows Update)

3.4 

Slow Ethernet Upload

Some users may experience issues with slow upload (usually 1.0 Mbps, or near there) with Ethernet connections, especially after updating to Windows 10 1803 (April 2018 Update). This can typically be resolved by uninstalling and reinstalling the Killer Control Center after the Windows 10 1803 update. Here is the step by step:

  1. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  2. Download the installer for the Killer Control Center that is best for your version of Windows 10. You can check this by clicking Start, then type winver and press Enter.
  3. Restart your computer by clicking Power > Start > Restart
  4. Run the Killer Software Uninstaller Tool. When it is finished, it will say REBOOT REQUIRED.
  5. Restart your computer by clicking Power > Start > Restart
  6. Once your computer has restarted, run the Killer Control Center installer that you downloaded, and follow the prompts to complete the install.

Please note that the Killer Software Uninstaller removes files and folders from previous installations that will not be removed simply by uninstalling old versions.

If you wish to know more about the differences between the two versions of the Killer Control Center, please see this article - https://www.killernetworking.com/driver-downloads/kb/faq/100-which-killer-control-center-should-i-install

 

Prompts to Update Killer Control Center

2.4 

Prompt to Update Killer Control Center

Users may see a prompt to update the Killer Control Center. This prompt is caused by a Windows Update that was not instigated by us but, nevertheless, targeted systems that came with the Killer Control Center preinstalled. Unfortunately, if you are here, you have probably already noticed that this prompt does not include any instructions on exactly how to update the Killer Control Center. 

The best way to eliminate this prompt is to manually update the Killer Control Center from our website. Here are the steps:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Windows 10 Version 1803 and above should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has booted back up, run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation.

You should now have the latest Killer Control Center and device drivers installed, and should no longer see the update prompt. 

How to Update or Install The Killer Control Center

3.0 

Updating or Installing The Killer Control Center

The Killer Control Center installers contain drivers for the Killer Wireless-AC 1525/1535/1435, Killer E2200, Killer E2400, and Killer E2500. The Killer Control Center can be installed on any system with one, or multiples of these network adapters.

Only the non-UWD version of the Killer Control Center that is downloaded from our website is compatible with our Wireless-N adapters - the Killer Wireless-N 1202/1103.

 The Killer Control Center cannot be installed on machines with the E2100, Xeno Pro, 2100, M1, or K1. These are legacy devices that are no longer supported, and no longer receive driver updates. 

The first step in updating or installing the Killer Control Center is download the correct installer package. There are currently two different Killer Control Center installers:

Choosing the Correct Installer

Those using a Killer Wireless-N adapter, Windows 7, Windows 8.1, and any older build of Windows 10 prior to 1803 (April 2018 Update) should use our website installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64

Those using Windows 10 1803 (April 2018 Update) or later should use the UWD installer, as long as they are not using a Wireless-N adapter - https://www.killernetworking.com/driver-downloads/item/kcc-uwd

Please note that the UWD installer is fully compatible with the E2200, E2400, E2500, Killer Wireless-AC 1525, 1435, 1535, 1550, and 1550i adapters, as well as all of our forthcoming adapters in 2018 and beyond.

Wireless xTend, a new feature of ours, is only compatible with the 1550, and will only appear if you use the UWD installer and have a 1550 installed.

If you are using Windows 10, and you are unsure which version you are running, you can find out by clicking Start, then typing winver and pressing Enter. A box will appear, which will give you information about Windows, including the version number. 

For more details on the differences between the two packages, please see this article - https://www.killernetworking.com/driver-downloads/kb/faq/100-which-killer-control-center-should-i-install

Once you know which version to download, and have downloaded it, double-click the installer to install both the latest drivers for your Killer devices, and the latest version of the Killer Control Center. 

If all goes well, you can stop here. 

Errors or Other Issues When Installing

If you encounter any errors or problems when installing, first try uninstalling all versions of the Killer Software that are currently on your machine. We have developed a tool to make this very simple. Please follow the steps below:

  1. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe (please note that this is not the old Killer Remover tool - this is much more comprehensive)
  2. Make sure you have the installer for the Killer Control Center that you will be installing. Return here if you aren't sure. 
  3. Restart your machine by clicking Start > Power > Restart
  4. Run the Killer Software Uninstaller Tool. There are two buttons - one for scanning, one for uninstalling. You do not have to scan. The scan might not find any software installations, but there may still be services installed on your machine that are preventing the installation of the current suite. Regardless of what the scan says, if you are having issues installing, make sure you click Remove Killer Software. When it is finished, it will say "RESTART REQUIRED"
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has completed restarting, run the installer for the Killer Control Center. 

If you are still unable to install the Killer Control Center, please try using Microsoft's tool for fixing problems that block programs from being installed or removed. You can find our guide for using this tool here - https://www.killernetworking.com/driver-downloads/kb/faq/90-microsoft-tool. This tool is very effective because, if you are still having problems by this point, the issue is very likely caused by files that have been shuffled around during a Windows Update. 

If the Microsoft Tool does not solve the issue, please submit a ticket to our support, along with an install log for us to analyze, by following these steps:

  1. Run the installer for the Killer Control Center one more time, so as to create the most recent possible information in the install log.
  2. After the installer fails, access your TEMP folder by clicking Start, then typing %TEMP%, then pressing Enter.
  3. Arrange the files in that folder by "Date Modified" so that the most recently modified files are at the top.
  4. You will see many files. Find the most recent file that begins with MSI and ends with .LOG. Move or copy that file to a place you will remember.
  5. Click Support > Contact Support at the top of our website, and be sure to click the folder and attach that .LOG file. In your ticket, please also mention any errors that you might have seen when attempting to install the Killer Control Center. 

No Killer Network Interfaces Connected

 

A few things can cause the Killer Control Center to report error. Following are the most common, and how to correct the issue:

  • You are connecting to the Internet using a network adapter other than a Killer product. Some machines ship with network adapters from multiple vendors. For example, your machine may have a Killer Ethernet adapter, but the wireless adapter may be from a different manufacturer, such as Intel. The Killer Control Center will not work with another brand's networking adapter. Be sure that you are connecting to the Internet using the Killer network adapter. Our performance suites only work connected to the Internet with our products. If your Ethernet adapter is a Killer Networking adapter, and your wireless adapter is not, then you will need to use an Ethernet cable to use the Killer Control Center. You can check to see which adapters you have installed by right-clicking Start, then clicking Device Manager, then double-clicking Network Adapters. If the only Killer Network adapter is listed as an Ethernet adapter, then you will need to use an Ethernet cable to use the Killer Control Center.
  • You are using an older version of the Killer Control Center. Some recent versions of the Killer Control Center experienced issues identifying some adapters. This has been resolved in current versions of the suite. Updating to the latest suite should resolve the issue. Even if you have a new machine, the version of the software that was installed on it when it was boxed may now be out of date. You can find the latest Killer Control Center here - https://www.killernetworking.com/killersupport/.
  • You are not connected to the Internet. You will receive this error if you are not connected to the Internet using a Killer Networking adapter. Note that if you are connected to the Internet using a virtual adapter of any kind, even if that virtual adapter is attached to a Killer Networking adapter, the Killer Control Center will show this message as it cannot work with a virtual adapter. 
  • You recently installed or updated the Killer Control Center and have not rebooted your computer. Rebooting should resolve the issue. Please note that, to restart, you should click Start > Power > Restart, as simply closing the lid, or pressing the power button on many modern computers activates sleep mode, and does not actually power down the machine. 
  • You are using a virtual network adapter. The Killer Control Center can only work if you are connecting to the Internet using a Killer Networking Adapter. If you are connecting to the Internet using a virtual adapter, the Killer Control Center will not work, and will show this message instead. 

If you are seeing this message and none of the above applies, please try clean installing the Killer Control Center. You can find instructions for that here - https://www.killernetworking.com/driver-downloads/kb/faq/105-clean-install-the-killer-control-center

Error 1923 Verify That You Have Sufficient Privileges and Error 1939

4.7 

Error 1923 Verify That You Have Sufficient Privileges and Error 1939

Some users may encounter the error Error 1923: Verify that you have sufficient privileges to install system services and/or Error 1939 when they attempt to update or install the Killer Control Center. This is caused by the installer not being able to remove the previous version of the service. This appears to be due to the moving of files by the Spring 2018 Windows Features Update. There were also some updates that were incorrectly pushed through Windows Update that have resulted in the Killer Control Center being left in this state. In order to resolve this issue, you will need to uninstall the old version of the Killer Control Center, remove the service, and then run the installer again. We have developed a new tool, which will quickly and easily remove all old versions of our performance suite, as well as all old versions of our service from your system. 

A few notes about the Killer Software Uninstaller Tool:

  • This is not the Killer Remover tool that you might find elsewhere on the web and in this knowledge base. This is a brand new tool that we have just recently developed due to this issue. The old Killer Remover tool is not capable of resolving this issue, as it only targets pieces of installs that were broken by Windows Feature Updates prior to the 2017 Fall Creator's Update. 
  • This tool does not remove device drivers, other than what would normally be removed when running the uninstaller for the suite that you have currently installed. This tool primarily removes the Killer Performance Suite, and its attachments to Windows Update. 

Here are the steps to correct the Error 1923, Error 1939, or any other issue where Windows Update has put your machine in a state where you cannot install the Killer Control Center:

  1. Click here to download the latest Killer Control Center installer from our website. 
  2. Click here to download the Killer Software Uninstaller Tool 
  3. Double-click the Killer Software Uninstaller Tool to run it.
  4. Click the Remove Killer Software button. This process may take some time.
  5. When the tool has finished removing everything, it will prompt you to restart your machine. Restart your machine by clicking Start > Power > Restart.
  6. Double-click the Killer Control Center installer and follow the prompts to install. 

Please note - some machines will stil show pending Windows Updates with "Killer" and/or "Rivet" in them. Now that you have removed the previous install, and installed the website version, these updates now refer to software that is not present on your system. They should either attempt to install, fail, and no longer show as "pending," or simply be removed from the list of pending updates. If these updates cause issues after you have installed the Killer Control Center from our website, please let us know!

If you have any further issues, please feel free to contact support directly by clicking Contact Support under Support at the top of the page!

 

Killer Control Center High CPU Usage 

3.0 

Killer Control Center High CPU Usage 

Some users have experienced high CPU usage by the Killer Control Center, often with the inability to update or effectively uninstall the Killer Control Center. This usually happens due to older versions of the software running on the latest version of Windows 10. 

First, if your machine is running very slowly due to the high CPU usage, you will want to disable the service. To do this:

  1. Click Start
  2. Type services.msc and press Enter
  3. Scroll until you find "Killer Network Service" or "Rivet Bandwidth Control." Once you find it, double click it.
  4. Click Stop. It may take a few moments for the service to stop. 
  5. Click OK and close the Services window. 

Your machine should now be more reactive while you uninstall the old version of the suite, and reinstall the latest.

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, as well as those using Wireless-N adapters, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Windows 10 Version 1803 and above should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  7. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  8. Restart your machine if the installer requested a restart.
  9. Test to see if the issue is resolved.

A Generic Error Occurred in GDI+ / Unhandled Exception

 

A Generic Error Occurred in GDI+ / Unhandled Exception

Some users may encounter an error when they attempt to open the Killer Control Center which reads, "A generic error occurred in GDI+" or "Unhandled Exception Error," at which point the Killer Control Center will either crash, or not load. 

This issue can be resolved by clean installing to the latest Killer Control Center. Here are the steps:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, or those using a Wireless-N device, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Those using Windows 10 Version 1803 and above and not using a Wireless-N adapter should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Restart your machine by clicking Start > Power > Restart
  5. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  6. Restart your machine by clicking Start > Power > Restart
  7. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  8. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  9. Restart your machine if the installer requested a restart.
  10. Test to see if the issue is resolved.

If you cannot install the latest Killer Control Center because you receive an error that says that the current package cannot be installed with one of our older packages, even after using this clean install guide, please see our guide for "Cannot Be Installed With" Errors. 

Killer Control Center Does Not Save Speeds / Asks Every Reboot

 

Killer Control Center Does Not Save Speeds / Asks Every Reboot

Some users may encounter a situation where the Killer Control Center does not save the speeds that are input in Speed Limits in the Settings menu, resulting in a pop-up at every restart, asking the user to set speeds. 

This issue can be resolved by clean-installing to the latest Killer Control Center. Here are the steps:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, or those using a Wireless-N device, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Thos using Windows 10 Version 1803 and above should, and not using a Wireless-N adapter, should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Restart your machine by clicking Start > Power > Restart
  5. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  6. Restart your machine by clicking Start > Power > Restart
  7. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  8. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  9. Restart your machine if the installer requested a restart.
  10. Test to see if the issue is resolved.

If you cannot install the latest Killer Control Center because you receive an error that says that the current package cannot be installed with one of our older packages, even after using this clean install guide, please see our guide for "Cannot Be Installed With" Errors. 

Bluescreen Errors

 

Bluescreen Errors

Users may encounter bluescreen errors referencing "RfeCoSvc", "bwcW10x64", or "QCAmain10x64". 

If you are using the Killer Network Manager, this may be the cause of the errors. The Killer Control Center has replaced the Killer Network Manager, and the Killer Network Manager is no longer being developed. The Killer Control Center is fully compatible with the E2200, E2400, and the E2500, as well as all of our Wireless-N and Wireless-AC network adapters. 

If you are using the Killer Control Center, the error could be due to outdated drivers or an outdated version of the Killer Control Center.

Most bluescreen error issues can be resolved by following the clean install guide here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.

If you continue to see bluescreen errors that are attributed to our software or hardware after you have clean-installed the latest suite, please contact support using this form - https://www.killernetworking.com/killersupport/driver-downloads/contact - and include a diagnostic. 

 

Using The Killer Control Center

 

Using The Killer Control Center

The Killer Control Center can be installed and, with the exception of setting the speed limits, can optimize your Internet experience with no other user interaction. 

However, for those who want to know more, we have created a video that details the finer points of customizing and using the Killer Control Center to its fullest potential. 

https://www.youtube.com/watch?v=dK8wW4d5fxQ

Below is an index of the individual points in the video:

Killer Control Center Errors After Update

 

Killer Control Center Errors After Update

Some users may experience errors with the Killer Control Center after updating to the latest version. This usually occurs when updating without uninstalling the old version first. While this is normally not a problem, we have noted that some users are encountering problems where:

  • The Killer Control Center will not open
  • The Killer Control Center causes GDI Exception Errors
  • The Killer Control Center causes a "NavBar" error.
  • Some specific websites are not accessible, while most websites are accessible. 

The solution to these issues is to perform a clean install of the latest Killer Control Center by following these steps:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, or those using a Wireless-N device, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Thos using Windows 10 Version 1803 and above should, and not using a Wireless-N adapter, should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Restart your machine by clicking Start > Power > Restart
  5. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  6. Restart your machine by clicking Start > Power > Restart
  7. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  8. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  9. Restart your machine if the installer requested a restart.
  10. Test to see if the issue is resolved.

If you cannot install the latest Killer Control Center because you receive an error that says that the current package cannot be installed with one of our older packages, even after using this clean install guide, please see our guide for "Cannot Be Installed With" Errors. 

Internet Problems With New Computers

2.8 

Internet Problems With New Computers

This article only applies to brand new computers using Windows 10.

Some users may experience issues with brand new computers with Killer Network adapters and the Killer Control Center or Killer Network Manager preinstalled. 

These issues are often caused by Windows automatically updating to the latest version of the operating system without giving the user the chance to update any preinstalled software or device drivers. This results in software, which was likely up to date at the time the machine was boxed by the manufacturer, running on a version of the operating system on which it was never tested, and may not be able to operate on correctly.

If the user notices that, after Windows has updated, their Internet performance is severely degraded, or they see bluescreen errors that are attributed to our software or drivers, they should uninstall the Killer Control Center or Killer Network Manager, make sure Windows is fully updated, and then install the latest version of the Killer Control Center

Here is the step-by-step:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, or those using a Wireless-N device, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Thos using Windows 10 Version 1803 and above should, and not using a Wireless-N adapter, should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Restart your machine by clicking Start > Power > Restart
  5. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  6. Restart your machine by clicking Start > Power > Restart
  7. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  8. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  9. Restart your machine if the installer requested a restart.
  10. Test to see if the issue is resolved.

If you cannot install the latest Killer Control Center because you receive an error that says that the current package cannot be installed with one of our older packages, even after using this clean install guide, please see our guide for "Cannot Be Installed With" Errors. 

 

VPN Client Connectivity Issues

 

Shrewsoft and Other VPN Clients

Previous versions of the Killer Control Center had some issues with some VPN clients. These issues have been resolved with the current releases. 

  • We suggest clean installing the latest Killer Control Center by following this guide - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center. Keep in mind that the Killer Control Center contains our latest drivers, and supersedes the Killer Network Manager that you might find pre-installed on your machine from the manufacturer. 
  • If you still have issues with your VPN connecting after clean installing the latest Killer Control Center, please try restarting your machine, and then uninstall and reinstall your VPN software.
  • If that does not resolve the issue, try using the Windows built-in Network Reset feature by clicking Start, and typing Network Reset. Then, click Network Reset and follow the prompts. You will likely need to reinstall your VPN software again after doing this. 
  • If the Network Reset does not resolve the issue with your VPN connecting, please try resetting  your network equipment and your network stack by following the guides here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/93-resetting-network-devices-and-network-stack.
  • If that does not resolve the problem, please contact us using this form - https://www.killernetworking.com/killersupport/driver-downloads/contact. Please include the requested diagnostic. Also, in the body of your ticket request, please include these details, if possible:
    • Link to VPN client software, if publicly available
    • On what type of server is your VPN server running (Linux, Windows Server, etc)? This would be the machine to which you connect when  you connect your VPN, not your own machine.
    • VPN Type (PPTP, L2TP/IPsec, etc)
    • Authentication Type
    • Encryption Type
    • Any other specific details that either you or your IT team or manager deems pertinent for us to troubleshoot a VPN connectivity issue. 

Do I Need To Configure The Killer Control Center?

 

Do I Need To Configure The Killer Control Center?

Other than running the speed test, which should be done whenever the user is able to minimize other network activity, the Killer Control Center runs very well as a background application with no user input whatosever. Note that the Killer Control Center will ask for a new speed test for each new network connection. This is normal, and it will save the results for each individual network until the Killer Control Center is updated. The reason for this behavior is to get an accurate reading for the maximum allowable bandwidth from each network, as each network will have different limits. 

The Killer Control Center will run in the background and prioritize latency-sensitive applications, and throttle bulk downloads when you are at your maximum bandwidth on its own, without user interaction. It does this based upon a set of predetermined rules, which we update from time to time. The rules do not automatically update, but unless the user plays a lot of very cutting-edge games, or uses many newly released applications, these priorities do not fluctuate often.

The user can update these rules by updating the suite itself from the website, or by clicking ​Download Latest App Priorities​ in the Settings window in the Killer Control Center. However, we update the Killer Control Center often enough that it's probably best to just grab the latest suite from here - http://killernetworking.com/driver-downloads/item/killer-control-center-x64​ - so that the user also has all of the latest drivers, as well as adjustments for any Windows Updates. The user can also manually change the priorities in the Killer Control Center at any time. 

Internet Problems With New Computers With Killer 1550

4.3 

Internet Problems With New Computers With Killer 1550

Some users may encounter issues with new computers with the Killer Wireless-AC 1550 installed. These issues can usually be resolved by clean-installing to the latest Killer Control Center. You can find the guide for this here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.

If you are unable to download the software in the guide, click Settings in the Killer Control Center, and toggle Advanced Stream Detect to Off. This will temporarily disable all latency reducing and bandwidth prioritizing features from your Killer networking adapter, but should allow you to download the updated package. Once you have installed the updated Killer Control Center, Advanced Stream Detect will be activated by default. 

Service Not Running

1.7 

Error: Service Not Running

You may experience a situation where their Killer Control Center says "Service Not Running" instead of operating normally. 

service not running

 

This issue should be resolved with the current build of the Killer Control Center. We recommend following our clean install guide here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.

If updating the suite does not solve the issue, then you will need to investigate why the service is not starting automatically. If the service does not start automatically when the machine starts, then there is likely another service that is preventing it from starting, or the service is not set to start automatically

You can check to make sure that the service is set to run automatically by following these steps:

  1. Click Start, type services.msc and press Enter.
  2. Scroll until you find the Killer Network Service and double-click it.
  3. Make sure the "Startup Type" is set to Automatic. You can also manually start it from here by clicking Start button, which will clear the error until you next restart your machine.

Antivirus suites can also cause issues with services. Try temporarily completely uninstalling your antivirus suite and restarting to see if that solves the issue. If the service starts without the antivirus suite installed, reinstall the suite using a freshly downloaded copy from the suite's website. The service may still start automatically after you have reinstalled the antivirus application. If it does not, please contact us at https://www.killernetworking.com/killersupport/driver-downloads/contact to let us know which antivirus suite is blocking our service from starting, and also contact your antivirus application's support to find out how to add our service to the list or exclusions. 

If our service still does not start, and you still receive the "Service Not Running" error with no antivirus installed, and while using the latest Killer Control Center, please reach out to us at https://www.killernetworking.com/killersupport/driver-downloads/contact so that we may assist you further.

Bandwidth Test Error in Killer Control Center

2.0 

Bandwidth Test Error in Killer Control Center

Users may notice errors with the built-in bandwidth test. This may be caused by a few things:

  • Our bandwidth test uses a software API to connect to one of many potential speed test servers. Some time ago, that API changed the way it accepted connections. Old versions of the Killer Control Center may be trying to connect the old way. The fix is to update the Killer Control Center. We suggest using our clean install guide here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.
  • Sometimes the nearest server to you may be down, resulting in an error. This will usually clear itself quickly as either the server will come back up, or the service will reroute the request. In the meantime, you can use a service like http://www.speedtest.net to test your speed, then input the upload and download values manually. There is no disadvantage to setting your speeds this way. 
  • If you have an antivirus or firewall application, it may be blocking the speedtest applet with an outgoing blocking rule. You may need to add an outgoing exception for the applet speedtest.exe in your antivirus or firewall application. You can find speedtest.exe in C:\Program Files\Killer Networking\Killer Control Center if you installed the Killer Control Center in the default location. 

Problems With The Killer Network Manager

 

The Killer Network Manager is our outgoing performance suite. It is no longer being updated, and does not contain the latest Ethernet or Wi-Fi drivers. We encourage all users of the Killer Wireless-AC 1525/1535/1435, Killer Wireless-N 1202/1103, Killer E2200, Killer E2400, and Killer E2500 to upgrade to the Killer Control Center, found here - https://www.killernetworking.com/killersupport/driver-downloads. This includes users whose machines came with the Killer Network Manager preinstalled. There is no need to continue using the Killer Network Manager.

For a smooth installation, we recommend using our clean-install guide for the Killer Control Center, found here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.

The old Killer Network Manager suite is still available for download here - https://www.killernetworking.com/killersupport/item/e2200-e2400-wireless - but will no longer be updated, and may not be fully compatible with future Windows updates, antivirus suites, or other applications that manipulate network data. The final update for the Killer Network Manager was in April 2017.

How to Update or Install The Killer Network Manager

4.0 

Updating or Installing The Killer Network Manager

The Killer Network Manager is our outgoing performance suite. It is no longer being updated, and does not contain the latest Ethernet or Wi-Fi drivers. We encourage all users of the Killer Wireless-AC 1525/1535/1435, Killer Wireless-N 1202/1103, Killer E2200, Killer E2400, and Killer E2500 to upgrade to the Killer Control Center. This includes users whose machines came with the Killer Network Manager preinstalled. There is no need to continue using the Killer Network Manager. 

For a smooth installation, we recommend using our clean install method of installing the Killer Control Center, which will use our software remover to remove all previous versions of our suites. You can find our guide, and links, here - https://www.killernetworking.com/killersupport/driver-downloads/kb/faq/105-clean-install-the-killer-control-center.

The old Killer Network Manager suite is still available for download here - https://www.killernetworking.com/killersupport/item/e2200-e2400-wireless - but will no longer be updated, and may not be fully compatible with future Windows updates, antivirus suites, or other applications that manipulate network data. The final update of the Killer Network Manager was April 7, 2017. 

Error 2753: The File 'xtendsoftapservice.exe' is Not Marked for Installation

 

The File 'xtendsoftapservice.exe' is Not Marked for Installation (Error 2753)

This guide also fixes the error "The feature you are trying to use is on a network resource that is unavailable..."

Some users may encounter this, or a similar error, when updating their drivers or Killer Control Center, or when uninstalling the Killer Control Center.

Even if you are in the process of updating the Killer Control Center, the issue is that the installer is unable to find this file in order to uninstall it, which is a necssary step for installing the latest suite.

The problem is that the file is either not present, or is not correctly flagged in the registry. This is a bug that was introduced in a few versions of the suite when it was present on your machine during a major Windows feature update, or an upgrade to Windows 10 from another version.

Note that this guide can also be used to uninstall some older versions of the application, which have become bugged due to Windows Feature Updates, and may or may not appear in the Apps and Features menu. The process is exactly the same. 

This issue can be resolved by following these steps:

  1. Download the latest Killer Control Center and keep it somewhere handy, to install when you're finished uninstalling the old suite - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. Download Microsoft's tool for fixing problems that block programs from being installed or removed - https://support.microsoft.com/en-us/help/17588/fix-problems-that-block-programs-from-being-installed-or-removed 


    microsoft uninstall fixit2

  3. Once you have both of those things downloaded, uninstall all Killer products from your Apps and Features menu, which you can access by right-clicking Start.


    right click start uninstall killer

  4. You may encounter that same error - Error 2753. The File 'xtendsoftapservice.exe' is Not Marked for Installation - and that is fine. When you do, skip that application, and uninstall any other applications from "Killer" including "Killer Drivers."

  5. Now run the tool from Microsoft. 

  6. For the first menu, you will simply click Next


    ms uninstall fixit 1

  7. Then after a moment of "Detecting Problems", it will ask if you are having a problem installing or uninstalling a program. Even if you are trying to update or install the Killer Control Center, the actual problem is happening when the installer attempts to uninstall the old suite, so you will choose Uninstalling


    ms uninstall fixit 2

  8. At the next prompt, the program will ask you to choose from a list of programs. Find the Killer-related program in the list. It may not be the same as the one in this screenshot, but choose whichever Killer suite the program finds, and then click the Next button. 


    ms uninstall fixit 3

  9. The tool will then proceed to erase the parts of the Killer suite that the installer was unable to remove from the registry. If the program is not listed, you have the option of choosing "Not Listed", and the tool may still find the pieces in the registry that need to be removed. However, it is hard to duplicate that particular scenario, so providing a screenshot is not possible, but it is fairly self-explanatory. 
  10. Once the tool has finished doing its work, you will want to restart your machine once more, and then install the latest Killer Control Center, which you downloaded previously.
  11. If you have any further questions, feel free to contact support at the link below! 

The Feature You Are Trying To Use Is On A Network Resource...

 

When updating the Killer Control Center, you may encounter the error "The feature you are trying to use is on a network resource that is unavailable..." 

the feature you are trying to use

This issue can be resolved by using Microsoft's tool for fixing problems that block programs from being installed or removed. Although it may seem like the issue is happening when you are installing the Killer Control Center, the problem is actually happening when the installer is attempting to remove pieces of older installs, so you will need to choose Uninstalling when prompted. A detailed guide for using this tool is availabie here - http://www.killernetworking.com/driver-downloads/kb/faq/34-error-2753-xtendsoftapservice. Although the article does not talk about this issue specifically, the guide and fix is exactly the same. 

Have a question about your Killer product that isn't answered in our Knowledge Base?  Contact Us.