Service Not Running


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 -

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 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 so that we may assist you further.

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 It is no longer being updated, and does not contain the latest Ethernet or Wi-Fi drivers.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 - 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 -

The old Killer Network Manager suite is still available for download here - - 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.

Network Column in Windows Task Manager Not Working


For our software to display bandwidth correctly, Windows NDU (Windows Network Data Usage Monitoring Driver) ends up getting stopped/disabled. This is because both services work by examining packets, and both doing so at the same time can cause conflicts.

If you force NDU to run while Killer Control Center or Killer Network Manager is installed, those two programs may not display bandwidth correctly.

If you would like to re-activate the Windows NDU to test for yourself, open a Command Prompt and enter the following:

sc config ndu start=auto

After you enter that command, reboot your Computer.

NDU should now be set to start automatically and the Task Manager Processes tab should show traffic in the Network column, but the Killer Control Center or Killer Network Manager might not work properly.

To disable it, enter the following into a Command Prompt:

sc config ndu start=disabled

After you enter that command, reboot your Computer.

Memory Leaks


Memory Leaks

Some users have reported memory leaks with some versions of our performance suite. The current version of the Killer Control Center has no known instance of memory leaks. Unfortunately, when a computer is assembled, the software that is installed on the computer will not necessarily be up to date when the user unboxes the machine. This means that the user will need to update the software. Various computer manufacturers test and provide various versions of our software on their own support pages at their discretion, so the version of our software that you might find elsewhere on the web may not be the most up to date. I

If you are experiencing memory leaks, we highly suggest clean installing 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 -
    2. Thos using Windows 10 Version 1803 and above should, and not using a Wireless-N adapter, should download this installer -
  3. Download the Killer Software Uninstaller Tool -
  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 continue to experience memory leaks after updating to the latest Killer Control Center and device drivers, please contact us using this form -

Please include:

  • The diagnostic requested by the form, with the latest Killer Control Center installed, after you have confirmed that the memory leak still exists
  • Some explanation as to how you reached the conclusion that our drivers or software are causing the issues.
  • Links to any relevant screenshots or logs that show our drivers or software using an inflated amount of memory.
  • Any troubleshooting steps that you have already tried.

KCC Version Does Not Match Installer Version Number


Installer (UWD) Version Does Not Match KCC Version

Some users have expressed confusion in that the current version of the installer does not install a version of the Killer Control Center by that same number. The Killer Software Package and the UWD Killer Control Center will not share a version number. This is due to the Killer Software Package installing multiple items in order for the latest Killer Control Center to work correctly. The Killer Software Package:

  1. Installs the latest device drivers for whatever Killer devices you have installed in your machine.
  2. Installs the current Killer Network Service, which is what does all of the work reducing latency and prioritizing applications.
  3. Installs the extension drivers needed for Windows 10 to be able to download and run the current version of the Killer Control Center.
  4. Forwards you to the Windows Store to install the Killer Control Center.

As the drivers, the network service, and the Killer Control Center will all be different versions, the Killer Software Package must also have its own version number.

To see if you have the current version of the Killer Software Package installed, right-click Start, then click Apps and Features. In that menu, scroll until you find Killer Performance Driver Suite UWD, then click it to expand. That version, circled in the image below, should match what is available from our website if you are using the latest version, regardless of which networking adapter your machine uses.

KCC Version
KCC Version



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