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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


About the author

Lim How Wei

Lim How Wei is the founder of followchain.org, with 8+ years of experience in Social Media Marketing and 4+ years of experience as an active investor in stocks and cryptocurrencies. He has researched, tested, and written thousands of articles ranging from social media platforms to messaging apps.

Lim has been quoted and referenced by major publications and media companies like WikiHow, Fast Company, HuffPost, Vice, New York Post, The Conversation, and many others. One of his articles about the gig economy was quoted by Joe Rogan who hosts The Joe Rogan Experience (arguably the most popular podcast in the world), in the This Past Weekend podcast by Theo Von.

In his free time, Lim plays multiple games like Genshin Impact, League of Legends, Counter-Strike, Hearthstone, RuneScape, and many others. He creates guides, walkthroughs, solutions, and more on games that he plays to help other players with their progression.