How to Fix VAC Unable to Verify your Game Session

How to Fix VAC Unable to Verify your Game Session

/ Shayne Sherman

If you are trying to play CS: GO, and suddenly, a VAC Game session error pops up on your screen, you are not alone. Many CS: GO players have encountered this problem with matchmaking.

As you know, being unable to enter matchmaking is really frustrating because you can’t play the game. You are stuck on the home screen with nothing to do.

Lucky for you, this problem with VAC is very easy to fix. Follow the guide below to help you solve this problem.

Method 1: Restart your Steam Client

You can get this error because there are some instances where steam encounters a bug or error within its system. Restarting the client will help you in resolving this issue.

Step 1: On your steam client, click on Steam on the menu bar.

Step 2: Click on exit.


Step 3: Open Steam Client.

Step 4: Click on Steam again on the menu bar.

Step 5: Select Go Offline.

Go Offline

Step 6: A pop-up window will appear; Press Restart in Offline Mode.

Step 7: After restarting steam, click on Steam again on the menu bar.

Step 8: Click on Go Online.

Go Online

Step 9: Then click on Restart and Go Online.

Method 2: Verify the Integrity of Steam Game Files

Step 1: Open Steam.

Step 2: Log in to your account.

Log in Account

Step 3: Go to Library.

Step 4: Right Click on the game that you are having problems launching.

Step 5: Click on Properties.

Game Properties

Step 6: Click on the Local Files tab.

Step 7: Click on Verify Integrity of the game.

Verify Integrity of Game Files

Step 8: Wait for the process to finish.

Method 3: Repair Steam Client in CMD

Step 1: Press on the Windows key + S and Search for Command Prompt.

Step 2: Click on Run as Administrator.

Command Prompt run as Administrator

Step 3: On Command Prompt, Type the following lines and hit Enter.

“C:\Program Files (x86)\Steam\bin\SteamService.exe” /repair

Program Files (x86)\Steam\bin\SteamService.exe

Step 4: After repairing Steam, try to run CS: GO again and see if the problem is fixed.

See Also: What to Do When Steam Won’t Open

Shayne Sherman
Meet the author

Shayne is an expert on all things Microsoft Windows and computer security. As a Windows user of over 30 years, he has been featured on Business Insider, Yahoo, Tech Republic, Hacker Noon, Techopedia, and many other publications. Aside from entertaining at his home theater, he enjoys spending time with his family, including his English bulldog, Fergie.