How to Discharge Your Machine to Reset Your CMOS


How to Discharge Your Machine to Reset Your CMOS

This guide will cover how to discharge your machine to reset your CMOS, forcing your machine to re-enumerate its devices. This is useful for when a device, such as a Wi-Fi adapter, has vanished from Device Manager, and you have taken steps to correct the problem, such as updating the machine's BIOS or reseating the device, but the device has not reappeared in Device Manager. 

Please note that some machines have a CMOS reset button or procedure. This is often easier to complete than discharging the machine, so that may be worth investigating. Desktop motherboards may have a CMOS reset button, and laptops may have a keypress combination. This will vary by manufacturer and model. 

Also, please note that any time you open up your machine, you do so at your own risk. This isn't generally a dangerous or difficult thing, but know your own capabilities. 

Discharging a Desktop  

  1. Shut down the computer by clicking Start > Power > Shut Down.
  2. Unplug the machine from the power outlet. 
  3. Open the machine and remove the CMOS battery. 
    1. This may or may not be necessary. You may want to try this guide without removing the CMOS battery first to see if this will be required for your motherboard, then repeat the process if it does not work, removing the CMOS battery the second time around.
    2. The CMOS battery is a large button battery, usually a 2032. Click here for a plethora of images. There will be a metal clip over it, which you will want to push in with a screwdriver, which will usually cause the battery to pop up a bit, allowing you to remove it by hand.
  4. Press and hold the power button for ten seconds to full discharge the machine. Then release the power button, then do it again, just to be sure. 
  5. Replace the CMOS battery if removed. The positive side will face outward, and the battery should just snap right into place and stay there. 
  6. Plug the computer back into the electricity.
  7. Power the computer on. You may see an error about CMOS values being reset. If you have never messed with these, press whatever combination sets things to default so that it will load into Windows. If you used custom BIOS settings, you may wish set those back up. 
  8. Once the computer is back up, right-click Start, click Device Manager, and check to see if the CMOS reset brought the missing device back. 

Discharging a Laptop

  1. Shut down the computer by clicking Start > Power > Shut Down.
  2. Unplug the machine from the power outlet. 
  3. Remove battery power from the machine.
    1. If the machine has an accessible, easily removable battery, remove it.
    2. If the machine does not have an accessible, easily removable battery, then you have two options.
      1. Open up the machine enough to disconnect the battery. You will need to refer to a guide or teardown manual for your specific model of machine. 
      2. Run the battery down to empty through usage. This option is the hardest on the battery. Make sure that you completely drain the battery and that it will not power on. 
  4. Press and hold the power button for ten seconds to completely discharge the machine. Then release the power button, then do it again, just to be sure.
  5. Replace or reconnect the battery.
  6. Plug the machine into the electricity.
  7. Power the computer on. You may see an error about CMOS values being reset. If you have never messed with these, press whatever combination sets things to default so that it will load into Windows. If you used custom BIOS settings, you may wish set those back up. If you had to run the machine until it was out of power, it may take a lot longer than normal to boot. This is normal, and will only happen this first boot after power is restored.
  8. Once the computer is back up, right-click Start, click Device Manager, and check to see if the CMOS reset brought the missing device back. 

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.

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

Doubleshot Pro Setup and Use On Legacy Devices


Doubleshot Pro Setup and Use (Legacy Killer Network Manager)

Doubleshot Pro is a feature unique to the Killer Networking products. To take advantage of Killer doubleshot pro, you must meet the following requirements:

• 2 or more Killer E2200 or Killer Wireless products installed on your system.
• Doubleshot Pro option enabled.
• Both Killer adapters must have a valid/working internet connection.
• If one connection is wireless, the signal strength must remain greater than 60%.

To enable the Doubleshot Pro feature, go to the Killer Network Manager. Click the checkbox next to "Enable Doubleshot Pro", then click "Apply Settings".

Priority 1 traffic will automatically be routed over the most reliable/fastest Killer adapter. All other traffic will be routed over the secondary or alternate adapter.

You can view and make changes to the adapter/priority from the Killer Network Manager Applications page.

Note: A open connection (such as a game session) cannot be re-routed on the fly. Thus, if a programs network traffic is already going over the primary adapter, and you change the priority to another priority, the program must be restarted for it to start going over the correct adapter.


Removing The Killer Control Center


How Do I Remove The Killer Control Center?

We understand that some of our users might prefer to use a driver-only solution. However, the Killer Control Center is designed to do its job with minimal necessary input from the user, and with a small resource footprint, so if you are encountering any problem that you suspect is caused by the Killer Control Center, we highly encourage you to reach out to us and let us know by contacting support here - We generally reply very quickly, and our small and agile team of dedicated QA and support staff work together to duplicate and fix issues, often within days of discovery. In addition, did you know that the Killer Control Center can help speed up your browsing experience, even if you aren’t gaming? Our prioritization technology will, on connections with limited speeds, such as shared hotel Wi-Fi, slow background downloads like Windows Update, in order to streamline data moving to your browser, which can have an enormous impact on web surfing speeds on slow and spotty connections. Of course, gaming comes first, but when you aren’t gaming, we still want your machine to be as responsive as possible!

However, if you would still rather use a driver-only solution, we do have that option available. You can easily switch to a driver-only installation by following these steps:

  1. Download our driver-only installer -
  2. Download our Killer Software Uninstaller tool -
  3. Run the Killer Software Uninstaller tool.
  4. Choose Remove Killer Software. It will say RESTART REQUIRED when it is finished. 
  5. Restart your machine by clicking Start > Power > Restart
  6. You may be tempted to stop here, as Windows will install drivers for most of our products. However, most of the drivers installed by Windows are older, problematic drivers, which is why we suggest installing the latest device drivers by running the driver-only installer. This will install only the device drivers, nothing else.
  7. Restart your machine if the installer calls for it. 
  8. You should now have only the latest device drivers installed, without any performance suite. You may want to bookmark this page - - for future driver updates. 


Changing a Network From Public to Private


Changing a Network From Public to Private

In order for our Dynamic Bandwidth Service to work properly, your network must be set as a "Private" network. For security reasons, if you do not specify otherwise, Windows will automatically set your network to a "Public" network. As long as you are indeed on a Private network, such as a home network where untrusted people and devices do not have access, you should change your network type to Private.

Note: Always leave networks such as public restaurant or campus networks set to Public. If there is any chance of an unknown person or device accessing the network, it is best to leave the network type set to Public, as Windows and third party antivirus and firewall programs set their local network security policies based upon this setting. However, this only affects your local network - in other words, your computer, and other devices that connect to the same router and/or modem. 

If you are using Windows 10 Fall Creators Update, Version 1709 Build 16299 or newer, Microsoft has made this process significantly simpler than in older builds. You can check your build by clicking Start and typing Winver and pressing Enter. If you are using an older build, then the simpler method is to use Windows Powershell. If your build is older than Version 1709 Build 16299, or you prefer to use the Windows Powershell commands, click here to jump to that guide. 

If you are using Version 1709 Build 16299 or newer, you can change your network from Public to Private by following these steps:

  1. Find your network connection in the lower right-hand corner of your screen, near where the clock sits  - tray and click it. 
    1. If you are using an Ethernet connection, you will be looking for the rectangular "Connect" icon ethernet symbol. It may be hidden beneath the arrow up arrow hidden icons in tray, with the other hidden icons, so if you don't see it beside the clock, click the ^ arrow in the tray. This is also the icon that you click to connect to a Wi-Fi connection when you aren't yet connected. 
    2. If you are using a Wi-Fi connection to which you have already connected, you will be looking for the Wi-Fi icon wifi icon, or the three waves. 
  2. Once you have clicked the icon for your connection, click the network itself from the list provided. This will open a window in which you may have to select your network once more.
  3. You should now see two radio buttons labeled "Public" and "Private" under "Network Profile." Click the radio button for Private and Windows will immediately change the network to a Private network. Should you need to change this back, you can do so from this same menu. However, Windows changes this setting automatically when you connect to different networks, so changing this setting for this network will not change the setting for connecting to other networks. The result should resemble the below picture.

    private network

  4. If you are using multiple Killer adapters, you may need to repeat these steps on the other adapters. 



Changing a Network From Public to Private Using Powershell

  1. Right-click Start and click Windows PowerShell (Admin)
  2. Type or copy and paste Get-NetConnectionProfile into the prompt and press Enter. The output should resemble the picture below. You are looking for the "Name". You can see that the name is "Network  8" in the picture below.
    get netconnectionprofile name
    You may have multiple network connections. You can usually tell which connection is the relevant connection as it will be either the Ethernet or the Wi-Fi connection that has either IPV4 or IPV6 Internet connectivity, depending on your computer, and which network adapter you use to connect to the Internet. Remember that only Killer network adapters can be used with the Killer Control Center.
  3. To change your network from Public to Private, using the example above, you would input Set-NetConnectionProfile -Name "Network  8" -NetworkCategory Private and press Enter. You can copy and paste the command, and use the arrow keys to navigate over to "Network 8", backspace over it, and type in your own network's name. The quotes should remain intact as they are part of the command. Notice that, in this particular case, there are two spaces between "Network" and "8". So long as the name is input exactly as it is listed, it will work. If in question, you can also highlight the network name, and copy and paste within Powershell. 
  4. If the operation is a success, there will be no confirmation. However, if the command is not valid, you will see an error. You can verify that the network type has been changed by inputting Get-NetConnectionProfile again, and checking to make sure that the NetworkCategory is set to "Private".
  5. If you have multiple Killer adapters, you will need to repeat this for each adapter.
  6. If you find that you need to change this back, for some reason, you can follow the same procedure, except input Set-NetConnectionProfile -Name "Network  8" -NetworkCategory Public to change the network type to Public. However, Windows changes this setting automatically when you connect to different networks, so changing this setting for this network will not change the setting for connecting to other networks. 
  7. If you have any problems changing your network type, please contact support using the below contact information and we will be happy to help you!


Clean Install Any Driver


How To Clean Install Any Driver

Note: This guide is written for Windows 10, but will also work for Windows 7 and Windows 8.1 with only minor variation. You alone are responsible for any issues caused by manipulating your Device Manager.

Before you begin this process, you need to know where the driver installer stores its temporary files. Recent Killer installers store all of their temporary files in the TEMP folder, which can be accessed by pressing Win Key + R to bring up the Run command, then type %TEMP% and press Enter. Other driver packages may use other locations, but you will need to know this information to clear these files, or Windows may attempt to install old drivers from this location. 

  1. Make sure you have the latest driver installer for the driver you will be installing. Killer Drivers can be found here - The Killer Control Center includes the latest performance suite, as well as the latest drivers for current Ethernet and Wi-Fi adapters. Bluetooth drivers are separate. If you need to find out which Killer Control Center installer to use, see this article -
  2. Right-click Start and click Apps and Features and uninstall any applications associated with the drivers that you will be reinstalling. For Killer Drivers, you can use our uninstaller tool, found here -
  3. Restart your machine using Start > Power > Restart. Do not use your machine's power button. This button is often mapped to the "sleep" function, and does not serve the same purpose. Restarting your machine clears any running processes that may be tied to files in the temporary folders.
  4. Delete all temporary installation files for the device driver. For Killer Drivers, you can accomplish this by deleting the entire contents of the TEMP folder. Some elements may not be removable, but they are not likely to be related to the Killer application or drivers. 
  5. Right-click Start and click Device Manager.
  6. Click View and click Show hidden devices (Note: this will reveal many devices that are no longer attached to your machine, as well as devices that should not be touched. If in doubt, leave it alone. You alone are responsible for any issues caused by manipulating drivers in your Device Manager.)
  7. Find the device whose driver you are uninstalling or reinstalling. 
  8. Right-click the device and click Uninstall.
  9. Check the box for Remove the driver software for this device, if the option exists.
  10. Click the Uninstall button.
  11. Uninstall any duplicates of this device, even if they are grayed out. 
  12. Once the Device Manager has completed uninstalling the drivers, click the light-blue Scan for hardware changes icon at the top of Device Manager. The device will probably reappear. If there were multiples, only one should reappear.
  13. Repeat steps 8 thru 12 until you no longer see the option to Remove the driver software for this device. At this point, you have removed all installed drivers from the driver store. If Windows has a default driver, it will still reinstall that driver, but you can generally leave that driver in place as it ships with Windows.
  14. Restart your machine once more.
  15. Run the installer for the latest drivers. 

Resetting Network Devices and Network Stack


Resetting Network Devices and Network Stack

Resetting your network devices and network stack, as well as updating your drivers, should be the first line of troubleshooting anytime you encounter a networking issue. Some people know this. However, many people are unaware that there is a proper order to resetting your networking devices, in order for them to synchonize quickly. Following is the fastest and easiest way to resolve most network problems, including, but not limited to Wi-Fi and Ethernet disconnects, slowdowns, and errors, even if these issues are affecting only one computer on your network. To reset your devices in the correct order:

  1. Shut down your computer by clicking Start > Power > Shut Down. Please note that using the power button on your machine is probably set to sleep the machine, not to shut it down. For troubleshooting purposes, the machine must be shut down.
  2. Locate your modem and note the lights on your modem when it is normal and ready. There may be a "Ready" or "Online" light. Taking a picture with a phone is a good tactic, so that you know when it's ready to go.
  3. Trace the Ethernet cord (not the screw-in coaxial cable or the power cord, but the one with a clip) to the next device to determine if you have a router.
  4. Unplug the power cord (either from the back of the device or from the wall, whichever is easier) from your modem, router, and any switches or hubs, between your computer and the modem, as well as any wireless boosters or access points, and leave them all unplugged for now.
  5. Plug in your modem.
  6. Wait until your modem's lights show normal operation again.
  7. Plug in your router, if you have one, and give it about five minutes to boot. Routers typically have no external means of telling if they are ready, but they should be ready after a five minute wait.
  8. Plug in anything else between your computer and the modem.
  9. Power on your computer.
  10. Once your computer is booted back up, if it is not connected to the Internet, or is still having issues, you will want to reset its network stack.

Resetting The Network Stack

Please note that these commands affect all of your networking adapters, both physical and virtual, both used and unused, so you will see some errors during the course of running these commands, where the resets targeted adapters that are not being used. This is perfectly normal, and not a cause for concern. Please complete each step, in order, even if you have done some of these previously, and even if you encounter errors. 

  1. In the search box on the taskbar (click Start), type command prompt, right-click the command prompt result, and then select Run as administrator and confirm.
  2. At the command prompt (decline restarting your machine until you have entered the final command):
    1. Type ipconfig /release and press Enter.
    2. Type ipconfig /flushdns and press Enter.
    3. Type ipconfig /renew and press Enter. (this will stall for a moment)
    4. Type netsh int ip reset and press Enter. (don't restart yet)
    5. Type netsh winsock reset and press Enter.
  3. Now restart your machine using Start > Power > Restart once more and test to see if the issue is resolved.


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