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Fix CS:GO Error: VAC was unable to verify your game session

Counter-Strike: Global Offensive (CS:GO) is an online multiplayer first-person shooter video game developed by Valve and Hidden Path Entertainment. It’s the fourth edition in the Counter-Strike game lineup and is available for Microsoft Windows, Macintosh OS, Xbox 360, and PlayStation 3 in 2012. While the Linux platform was added later in 2014. back to the topic, plenty of CS: GO PC players are getting matchmaking failed error that pops up VAC was unable to verify your game session.

Now, if you’re also a CS: GO player and experiencing the same error then you’re not alone. This particular issue occurs whenever players trying to matchmake in the game. This is very irritating for the players and luckily there are a couple of possible workarounds that you can apply in your game or PC to fix it. To recall, the CS: GO VAC is an automated system that scans the game file to track any applied cheat code or something like this.

Fix CS:GO Error: VAC was unable to verify your game session

Some times it can be a headache as if you get a VAS ban then you won’t be able to play the game on any VAC secured servers and that will be for permanently as well as not negotiable. So, without trying and getting the same error for too many times, you should follow some of the commonly used methods below.

Also Read: Fix: CS:GO Fatal Error Loading Vertex Shader

Steps to Fix CS:GO Error: VAC was unable to verify your game session

The following methods are quite useful and most of the players have fixed the particular matchmaking error by applying these steps. So, let’s dive into it right now.

The VAC ERROR GOT FIXED, JUST RESTART STEAM AND YOU SHOULD GET AND UPDATE FOR THE STEAM CLIENT. from csgo

1. Restart Steam Client

It’s quite common to face errors or problems in your online game due to missing or corrupted files or even due to the game client/launcher issue. So, it’s better to exit the game launcher and start over again.

  • From the Steam client interface, click on the Steam in the top-left corner.
  • Here you will need to select the Exit button to fully close the game launcher.
  • Now, launch the Steam client again.
  • Click on the Steam in the upper-right corner and then click on Go Offline.
  • An offline mode notice will appear. Simply click on the RESTART IN OFFLINE MODE.
  • Click on Steam again and select Go Online.
  • Next, select RESTART AND GO ONLINE.
  • Finally, launch your CS:GO game and enjoy it.

If this method doesn’t work for you, follow the next method.

2. Verify Integrity of Game Files

There may be some issues with your game files that can also cause crashes or errors in most cases. So, verifying the game files directly from the Steam client will help to fix all the possible issues automatically.

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  • Launch Steam client > Go to Library.
  • Here you will see the CS:GO game. Just right-click on it.
  • Click on Properties.
  • Then click on LOCAL FILES tab > Click VERIFY INTEGRITY OF GAME FILES.
  • The verifying process will take a few moments. So, wait for it to complete.
  • Once the validation process is done, click on the CLOSE button.
  • Launch your game and you may not see the matchmaking error anymore.

However, if the above method also didn’t work for you, then you can proceed to the next method.

3. Repair Steam Client to fix CS:GO Error

  • Close your Steam client properly by clicking on the Exit button.
  • Next, head over to the CMD or Command Prompt by typing cmd in the Start menu interface.
  • The Command Prompt option will appear in the search result. Right-click on it and select Run as administrator.
  • Here you will need to type the following command line in the command prompt interface.
"C:\Program Files (x86)\Steam\bin\SteamService.exe" /repair
  • This is basically the installed directory of the Steam client which will be repaired by using the code. So, if you’ve installed your Steam client to a different location rather than the C drive then change the location by typing it manually.
  • Once done, hit Enter to execute the process and wait for it to complete.
  • Finally, close the Command Prompt and launch the Steam client then run the CS:GO game.

We hope any of these methods will definitely work for you and the CS:GO matchmaking error won’t be visible anymore. However, we will also recommend you to check for the latest graphics driver update as well as Windows OS update (if any).

That’s it, guys. You can comment below for more queries or if in case, you’re having any other issue with your Steam client or CS:GO game.

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