Vac was unable to verify your game session

Vac was unable to verify your game session, CS: GO’s error

Counter S-Strike is a popular game, which is played all over the world. But sometimes when a user goes for matchmaking, it shows an error that Vac is unable to verify your game session. This is quite irritating when we want to play the game and we have seen many people are searching for this problem on the Internet.

It doesn’t recognize the matchmaker because it is unable to configure the files. If you are also facing this type of error then don’t worry, we will tell you the proper solution to fix this error.

How to fix CS:GO’s VAC unable to verify error

We are providing some tips through which you can fix this Vac unable to verify the game error.

# Verify the game files

This type of error also causes when the game files are corrupt or it is not properly verified. So it is necessary to verify the game files. Let me tell you how to do it –

  • First of all, you need to open your Steam client and tap on the Library option.
  • Now just right-click on your game file and tap on the properties option.
  • Then move to the local files tab and click on the ‘verify Integrity of game files’ option.
  • Now just wait until the process finishes and then tap on the close tab.
  • Now just launch the game and check whether the problem persists or not.

#  Repair the Steam Client

This error also causes when your steam gets corrupted. At that time, it is necessary to repair it. Just follow the steps to proceed.

  • First of all, tap on the Steam option in your Steam app at the top left corner.
  • Then just click on the Exit button from the drop-down menu.
  • Then tap on the Start option on the Windows screen and type cmd in the search bar.
  • Now just tap on the Command Prompt option and click ‘Run as an administrator’.
  • Now in the command prompt, just type “C:\Program Files (x86)\Steam\bin\SteamService.exe” /repair and press the Enter tab.
  • Now run your steam client and open your game to check whether the problem is solved or not.

# Update the Drivers

The problem also persists because you are using old or outdated drivers, so it is quite necessary to update the drivers. Updating drivers is not a tough task like downloading and installing it. All the processes of updating the drivers will run automatically, you just need to do the basic steps that we have given below.

  • First of all, you need to download Driver Easy software and install it on your Windows.
  • Now run the application and click on the Scan Now button. It will start scanning all the drivers of your operating system.
  • You will get the list of the drivers that need to be updated. You just need to tap on Update all drivers.
  • Then just restart your PC and check whether the problem is solved or not.


So these are the methods that you can implement if you are facing the error of Vac is unable to very the game session. We have given more methods so that if any of the solutions is not working then you can try the other one. Still, if you have any queries then you can ask us in the comment section.

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