How to fix Valorant’s Vanguard Windows 11 errors

Matthew Adams
by Matthew Adams
Windows & Software Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it. He is passionate about... Read more
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  • Some players can’t play Valorant because of two common Vanguard Windows 11 errors.
  • You can fix the Van 9001 error in Windows 11 by enabling the security features required for the Vanguard anti-cheat software.
  • Players might be able to fix the Windows 11 Valorant anti-cheat error by changing Windows Defender Firewall settings.
  • Enabling or restarting certain services might also fix Valorant’s anti-cheat error.
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Valorant is still a relatively new first-person shooter multiplayer game for Windows 11/10. Since the release of Windows 11, more players have been reporting errors that arise for that game on Microsoft’s latest desktop platform.

The Van9001 and Windows 11 Valorant anti-cheat errors are two of the most widely cited Valorant issues. Both of those issues are associated with Valorant’s Vanguard software. Those errors have the following messages:

Vanguard anti-cheat has encountered an error. Please relaunch the client to restore anti-cheat function.
Van 9001: This build of Vanguard requires TPM version 2.0 and secure boot to be enabled to play.

Those two Vanguard errors arise when players try to launch Valorant in Windows 11. Consequently, players can’t play Valorant because of those errors. If you need to fix one of those issues, check out the potential fixes for it below.

What is Vanguard?

Vanguard is the anti-cheat software for the Valorant game. That Riot software comes installed with the game to prevent players from cheating in Valorant. You can’t play Valorant without the Riot Vanguard software installed and active.

That software has been somewhat controversial because it blocks apps. Players have complained Vanguard blocks legitimate apps even when they’re not playing the game. When it blocks something, a Riot Vanguard notification appears above the Windows system tray area.

Does Valorant work in Windows 11?

Yes, Valorant is compatible with Windows 11. However, its Vanguard anti-cheat software enforces the same TPM 2.0 security system requirement as Windows 11.

The secure boot option must also be enabled for players to play Valorant on Microsoft’s latest desktop platform.

So, you can’t play Valorant in Windows 11 if TPM 2.0 and secure boot aren’t enabled. That’s why some players have needed to fix the Van9001 error. The Van9001 error message makes it clear enough what needs to be enabled for Vanguard in Windows 11.

How can I fix the Valorant Vanguard Windows 11 errors?

Fixes for the Van 9001 error

1. Enable both secure boot and TPM 2.0

  1. Press the Start taskbar button.
  2. Click the pinned Settings app to open it.
    Settings app vanguard windows 11 error
  3. Select Recovery on the System tab.
    Recovery option vanguard windows 11 error
  4. Press the Restart now button for the Advanced startup option.
    Restart now button vanguard windows 11 error
  5. Select Troubleshoot on the blue menu.
    The Troubleshoot option vanguard windows 11 error
  6. Then select Advanced options to bring up the options shown directly below.
    Advanced options vanguard windows 11 error
  7. Click UEFI Firmware Settings there.
    UEFI Firmware Settings vanguard windows 11 error
  8. Then select Restart to enter UEFI Firmware options.
    Restart button
  9. Locate and select Secure boot within the UEFI Firmware settings to enable that option.
  10. Find and enable the TPM setting, which could be on an Advanced or Security tab.

Our Fix: TPM device not detected error guide also provides details for enabling TPM within BIOS settings. However, UEFI Firmware and BIOS menu layouts vary between PCs.

Your motherboard manual might include more specific instructions for enabling TPM 2.0.


2. Select the Allow BitLocker without a compatible TPM option

  1. Right-click Start to bring up Win + X menu from which to select Run.
    Run option vanguard windows 11 error
  2. To open Group Policy Editor, input this command and click OK: gpedit.msc
    The gpedit.msc command vanguard windows 11 error
  3. Double-click Computer Configuration and select Administrative Templates in Group Policy Editor.
    Administrative Templates vanguard windows 11 error
  4. Select Windows Components and BitLocker Drive Encryption on the right of the window.
    BitLocker Driver Encryption component vanguard windows 11 error
  5. Then double-click Operating System Drives to bring up policy settings.
    Operating System Drives vanguard windows 11 error
  6. Double-click the Require additional authentication at startup policy there.
    Require additional authentication at startup policy vanguard windows 11 error
  7. Select the Enabled radio button.
    Enabled radio button vanguard windows 11 error
  8. Then select the Allow BitLocker without a compatible TPM checkbox.
    The Allow BitLocker without a compatible TPM option vanguard windows 11 error
  9. Press the Apply button to save your new Group Policy options.
    The Apply button vanguard windows 11 error
Note icon
NOTE
Note that Local Group Policy Editor is not included with Windows 11 Home edition. However, users with Windows 11 Pro and Enterprise can configure Group Policy settings.

Fixes for the Windows 11 Valorant Vanguard anti-cheat error

1. Run Valorant as an administrator

  1. Open File Explorer by clicking the taskbar icon shown directly below.
    The File Explorer button vanguard windows 11 error
  2. Then open Valorant’s installation folder.
  3. Right-click Valorant’s EXE to select Properties.
    Properties option vanguard windows 11 error
  4. Select Run this program as administrator on the Compatibility tab.
    Run this program as an administrator option vanguard windows 11 error
  5. It’s also recommended that you select the Disable full-screen optimizations option on that tab.
  6. Click Apply and OK to save the selected options.
Note icon
NOTE
You can also run Valorant with elevated rights by right-clicking a shortcut for it and selecting Run as administrator. For Valorant to always run with elevated rights, however, you’ll need to configure it to do so as outlined above.

2. Check the VGC service is enabled and running

  1. Click the magnifying glass taskbar button, and enter services within the search box.
    The search button vanguard windows 11 error
  2. Select the Services app.
    The Services app vanguard windows 11 error
  3. Next, right-click the VGC service and select Properties.
    The Properties option vanguard windows 11 error
  4. Select the Automatic startup option if it’s not selected.Automatic option vanguard windows 11 error
  5. Click Start on the properties window if the service isn’t running.
    The Start and Apply options vanguard windows 11 error
  6. Press the Apply button to confirm.
Note icon
NOTE
If VGC is already enabled and running, try restarting that service by right-clicking it and selecting Restart.


3. Allow Valorant through Windows Defender Firewall

  1. Open the search tool in Windows 11 from the taskbar.
  2. Input the keyword Windows Defender Firewall within the search text box.
    Windows Defender Firewall search result vanguard windows 11 error
  3. Click Windows Defender Firewall to open that Control Panel applet.
  4. Select the Allow an app or feature through Windows Defender Firewall option on the left side of the Control Panel.
    Allow an app or feature through Windows Defender Firewall option vanguard windows 11 error
  5. Press the Change settings button.
    Change settings button vanguard windows 11 error
  6. Click the Allow another app option.
    The Allow another app button vanguard windows 11 error
  7. Press the Browse button to select Valorant, and click the Open option.
    Open button vanguard windows 11 error
  8. Then click Add.
    Add button vanguard windows 11 error
  9. Now select the Private and Public checkboxes for Valorant within the firewall’s settings.
    Private and Public checkboxes vanguard windows 11 error
  10. Click the OK option.

4. Disable third-party anti-virus software

If you have third-party antivirus software installed, it’s recommended that you disable that utility before playing Valorant.

To do so, right-click the system tray icon for your antivirus utility and select a disable option on the context menu. Select to disable the antivirus shield for a few hours if possible.

If you can then play Valorant after disabling your antivirus software, the antivirus utility’s shield or firewall was likely conflicting with the game or its anti-cheat software. In which case, consider adding Valorant and Vanguard to your antivirus utility’s exceptions list. In case that does not work, we recommend giving a try to gaming-friendly AV software.

5. Reinstall Vanguard

  1. Press the Windows + I key combination.
  2. Select Apps on the left of Settings.
    apps tab vanguard windows 11 error
  3. Click the Apps & features navigation option.
    The Apps & features option vanguard windows 11 error
  4. Next, click the three-dot button for Riot Vanguard to select Uninstall.
    Uninstall option vanguard windows 11 error
  5. Select Restart on the Start menu.
    Restart button vanguard windows 11 error
  6. Thereafter, open the Valorant client to reinstall the Vanguard anti-cheat software.

If you can prefer, you can also utilize a third-party uninstaller app, like IObit Uninstaller, to uninstall Vanguard. IObit Uninstall includes additional options for erasing leftover residual files and registry entries from uninstalled software.

Do Valorant’s connection errors have anything to do with Vanguard?

The Valorant Connection error that arises when some players launch the game is often due to Vanguard. If you ever need to fix that error, try uninstalling and reinstalling Vanguard as outlined within the last potential resolution above.

However, that connection issue can also arise for other reasons. There could be an issue with your internet connection. In which case, running the Internet Connections troubleshooter or restarting your router might also help

So, that’s how you can fix the Vanguard 9001 and anti-cheat errors in Windows 11. Those are two of the most common issues Valorant players have needed to fix on Microsoft’s latest desktop platform.

The fix for the 9001 error is pretty clear-cut. You need to quite simply enable both TPM 2.0 and secure boot on your PC to resolve that issue. If can utilize Group Policy Editor, selecting the Allow BitLocker without a compatible TPM option might also work.

However, how you can fix the Vanguard anti-cheat error isn’t quite so obvious. In many cases, that error occurs because of firewall and antivirus software blocks. Try applying all the potential resolutions above for the Windows 11 Valorant anti-cheat error to get it fixed.

If you have any questions about those Valorant Vanguard errors, feel free to add them below. You can discuss those Vanguard Windows 11 errors and share other potential resolutions for them in that comments section.

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