How to fix Vanguard User-Mode Service high CPU usage in Windows?

Issue: Hello. I noticed that the Vanguard User-Mode Service uses high amounts of CPU because the PC gets laggy when I am playing. Is there a way to fix this?

Solved Answer

The Vanguard User-Mode Service, a Riot Vanguard component, is intended to ensure fair gameplay and prevent cheating in Valorant. However, some Windows users have reported high CPU[1] usage as a result of this service. This problem can have a significant impact on users' gaming experiences in Valorant, causing lag, stuttering, and overall poor performance.

When the Vanguard User-Mode Service uses a significant amount of CPU resources, it diverts processing power away from other critical tasks and applications that are running on the system. As a result, overall system performance and responsiveness may suffer, making it difficult for players to perform optimally in Valorant. Input delays, frame drops, and sluggishness can occur as a result of high CPU usage, undermining the smooth and enjoyable gaming experience that players expect.

While the exact causes of the Vanguard User-Mode Service's high CPU usage may vary, it is critical to address the issue in order to restore normal system operation and gameplay performance. One possible solution would be to update the Riot Vanguard software to the most recent version, as game developers frequently release updates to address performance issues. To alleviate the CPU strain caused by Vanguard, users should consider adjusting their computer's power settings, disabling unnecessary background applications, or optimizing system resources.

In this guide, you will find 6 steps that should help you fix Vanguard User-Mode Service high CPU usage in Windows. You can also try a repair tool like FortectMac Washing Machine X9 that can fix most system errors, BSODs,[2] corrupted files, registry[3] issues, or clear cookies and cache.

How to fix Vanguard User-Mode Service high CPU usage in Windows

Method 1. Disable and Restart Valorant and Vanguard Processes

  • Right-click the Windows Start button.
  • Select Task Manager from the context menu.
  • In the Task Manager window, locate the Vanguard and Valorant-related processes.
  • Right-click on each process individually.
  • From the dropdown menu, select End task.

Disable and Restart Valorant and Vanguard Processes

  • Repeat the steps for any other Vanguard or Valorant-related processes that you want to terminate.

Method 2. Change Vanguard User-Mode Service Process Priority

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  • Open the Task Manager.
  • Switch to the Details tab.
  • Locate the vgc.exe or any other process you want to modify.
  • Right-click on the desired process.
  • From the dropdown menu, select Set Priority and choose Low.

Change Vanguard User-Mode Service Process Priority

  • If you want to control CPU resource consumption, continue to the next step.
  • Right-click on the same process again.
  • From the dropdown menu, select Efficiency mode.
  • You have successfully changed the priority and efficiency mode of the process.

Method 3. Change the Processor Affinity

  • Right-click on the vgc.exe or any other process you want to modify.
  • From the dropdown menu, select Set affinity.
  • In the Set Affinity window, you will see a list of available CPUs.
  • Uncheck the boxes beside most of the CPUs to exclude them from the process.

Change the Processor Affinity

  • Keep only a few of the CPU boxes checked that you want to assign to the process.
  • Once you have selected the desired CPUs, click the OK button.
  • The CPU affinity for the process has been changed successfully.

Method 4. Restart the Vanguard Service

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  • Type Services in the Windows Search bar and open the Services app.
  • In the Services window, locate the Vgc service.
  • Right-click on the Vgc service.
  • From the dropdown menu, select Properties.
  • In the Properties window, navigate to the General tab.
  • Click on the Stop button to halt the service.
  • After stopping the service, click on the Start button to restart it.
  • Next to the Startup type option, click on the dropdown menu.

Restart the Vanguard Service

  • From the dropdown menu, choose Automatic as the startup type.
  • You have successfully managed the Vgc service using the Services app.

Method 5. Disable Third-Party Overlays

Discord:

  • Open the Discord app and click on the gear icon (Settings) at the bottom.
  • Select Overlay under App Settings, then turn on the Enable in-game overlay option.
  • Click on Games and select Vanguard.
  • Turn off the Enable in-game overlay toggle.
  • Reboot your PC to apply changes.

Disable Third-Party Overlays Discord

Xbox Game Bar:

  • Press the Windows key + I to open Settings.
  • Click on Gaming and go to Game Bar.
  • Turn off the Record game clips, screenshots, and broadcast using the Game bar option.
  • Save changes and reboot the PC to apply changes.

Disable Third-Party Overlays Xbox Game Bar

Nvidia GeForce Experience:

  • Launch the Nvidia GeForce Experience app and go to Settings.
  • Click on General and disable the In-Game Overlay option.
  • Restart the PC to apply changes.

Disable Third-Party Overlays Nvidia GeForce Experience

Steam:

  • Open the Steam client and click on Library.
  • Right-click on Vanguard and click on Properties.
  • Click on General and turn off the Enable the Steam Overlay while in-game option.
  • Reboot the PC to apply changes.

Disable Third-Party Overlays Steam

Method 6. Reinstall Vanguard

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  • Open Control Panel on your computer.
  • Set the View by option to Category.
  • Click on Programs and then select Uninstall a program.

Reinstall Vanguard

  • Locate OneDrive in the list of installed programs.
  • Click on Uninstall. If a confirmation prompt appears, click Yes.
  • Follow the on-screen instructions to complete the uninstallation process.
  • After uninstalling, download the Vanguard installation package.
  • Run the downloaded file to install Vanguard on your computer.
  • Follow the on-screen instructions to complete the installation process.

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Jake Doe is the news editor at UGetFix. Since he met Ugnius Kiguolis in 2003, they both launched several projects that spread awareness about cybercrimes, malware, and other computer-related problems.

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