How to Fix Valve Anti-Cheat in CS2

Are you getting a Valve Anti-Cheat warning/message when you try to play CS2 (Counter Strike 2)?

Here’s the error message, “Some of your game files have been detected to have no signatures or invalid signatures”.

Followed by, “You will not be allowed to join VAC secure servers”.

And, “Please verify your launch options, check correctness of your game installation, restart the game, and try again”.

In this guide, you’ll learn how to fix the Valve Anti-Cheat error in CS2 (Counter-Strike 2) on Steam.

How to fix Valve Anti-Cheat in CS2

To fix Valve Anti-Cheat in CS2, you need to verify the integrity of game files.

You can also try enabling/disabling administrator mode for CS2, disabling Nvidia Ansel, or launching the game directly from your Steam Library.

Fix 1: Verify game files

  1. Go to your Steam Library.
  2. Right-click Counter-Strike.
  3. Properties > Installed Files > Verify integrity of game files.

Fix 2: Tick/untick admin

  1. Go to your Steam Library.
  2. Right-click Counter-Strike.
  3. Properties > Installed Files > Browse.
  4. Right-click the Counter-Strike app.
  5. Properties > Compatibility.
  6. Tick/Untick “Run this program as an administrator”.

Fix 3: Disable Nvidia Ansel

  1. Search for “Windows Powershell” using Windows Search, right-click the program and select “Run as administrator”, and run these two commands:
  2. dir “$env:systemroot\system32\driverstore\filerepository\*NvCameraEnable.exe” -rec |% {& “$_” off}
  3. dir “$env:programfiles\nvidia corporation\*NvCameraEnable.exe” -rec |% {& “$_” off}

Fix 4: Launch in Steam Library

  1. Open Steam and go to your Steam Library.
  2. Launch Counter-Strike from your Steam Library.

Further reading

How to Fix Error 126 in CS2

How to Fix VAC Unable to Verify Error in CS2

How to Get CS2 Beta Invite

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