Quick fix for "VAC was unable to verify game session" error in CS:GO

Have you ever received the CS:GO error "VAC was unable to verify your game session"? You're not the only person to experience the annoying problem, which prevents you from participating in matches. Continue reading below for tips on how to fix it.


The 'VAC protected' matchmaking servers in CS:GO are all anti-cheat measures to stop players from utilizing outside software to gain an unfair advantage. VAC will make sure that nothing is missing or added from any player's game files in order to do this. But occasionally, a mistake might happen that either stops VAC from performing this check or identifies a problem. Here are some methods you can do to fix the "VAC was unable to verify your game session error" that you would encounter in this situation.

How to fix "VAC was unable to verify game session" in CS:GO?​

Restart the Game​

The quickest and easiest solution should always be tried first because it can address the issue right away. Before reopening Steam and starting CS:GO through the Steam launcher, shut down both CS:GO and Steam completely. It's advised to avoid relaunching it from a desktop shortcut until you try the following piece of suggestion.

Run CS:GO as Administrator​

An issue with system permissions may result in the VAC unable to verify error. You should try running CS:GO as administrator to prevent any problems. Simply right-click the shortcut and choose "run as administrator" to accomplish this. It's also recommended to launch Steam in this manner. We will proceed to the other options if neither of these short remedies succeeds in fixing the problem.


Verify the Integrity of Game Files​

When you encounter any unexpected errors, it is usually advised to examine the game files. However, this is especially important when encountering the VAC unable to verify error. This is due to the high likelihood that there is a problem with one or more of CS:GO's local files.

Use these steps to check the game files' integrity on Steam:
  1. Head to your Steam Library.
  2. Right-click Counter-Strike: Global Offensive from the game list.
  3. Go to Properties, then Local Files.
  4. Select Verify integrity of game files.

If any files are corrupted or missing, Steam ought to find them and fix the issue. After that, try re-launching CS:GO and looking for a match to see whether the problem has been fixed.

Restart your PC​

If you still get the VAC unable to validate game session issue after checking your game files, the next solution is a classic: turning it off and back on. Try restarting your computer and then loading CS:GO in particular. There are a few additional steps you can take if the error persists because this will fix the problem for many gamers but not all.

Change Steam Profile Name and Profile Picture​

This advice may seem strange, but many gamers claim that it truly works and immediately resolves the VAC unable to verify error for them. Go to your profile and click 'Edit Profile' in the top right corner, just below your highlighted badge, to alter your Steam display name and photo. Next, just type in a new name and submit a fresh photo. After that, try restarting CS:GO to check if the issue has been fixed.

Reinstall CS:GO​

This advice has been saved for last since it will take the greatest time to implement because you will have to download and reinstall Counter-Strike. Close the application, right-click the game in your Steam library, and choose uninstall if you've tried all of the aforementioned solutions and you're still unable to look for a game in CS:GO. Then, when ready, just download it once more and relaunch it.

Contact Steam Support​

The next best course of action is to get in touch with Steam support and report the issue if all of these measures including a complete reinstall of CS:GO haven't fixed the problem. Await a response, and in the meantime, keep restarting and trying to find a game occasionally. Many players claim that the error eventually goes away.


CS:GO's long-standing and annoying "VAC was unable to verify your game session" problem still has an impact on players on a daily basis. However, keep in mind that when it functions, its goal is to stop cheats from entering matches, so it's not entirely awful.