CSGO (Counter-Strike: Global Official) is a game with a name and reputation. It is a first-person shooter that can be played either solo or with your friends. The game has a good record of regular updates and improvements. However, this does not mean that it is the full proof of any types of issues. Our toady’s guide revolves around the Matchmaking Failed – Vac was Unable to Verify Your Game Session error issue. The error appears when a user tries to queue for matchmaking. It is the most frustrating error that you can face in this game. This error does not let you play any game session, be it casual, competitive, or even community server; the error just stops you. In this guide, we will give some solutions that can easily fix this issue,, and you can enjoy your game without problems.

Vac was unable to verify your game session

What Causes Vac was unable to verify your game session Error

You must be wondering that why the game which was playing just fine yesterday is suddenly showing an error. Some users who have just installed the game can also face the same issue. The reason behind this error can occur due to changes in the game files, changes in the sense like possible corruption, game file changes, etc. It can happen if you have installed any cheat engine program. The error can also appear if you have recently updated the game or moved the game files. 

  • Game cache files are corrupted.
  • Game files are corrupted
  • Made changes in the game files
  • Updated the game
  • Installed any cheat engine program

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How to Fix Vac Was Unable to Verify Your Game Session Error

To get free from the Vac was unable to verify your game session Error below you can try out the solutions. All the solutions are found to be effective against the issue. In case a method does not work, feel free to try other ways; also make sure to follow the steps correctly.

1. Remove Cheat Engine

The game has an inbuilt feature to detect any cheat engine. If you have installed any cheat program, it is suggested that you remove it right away.

Once removed, restart your system and then tried running the game.

2. Restart PC

There have been multiple cases in which the issue was a temporary glitch. So try to restart your system, and hopefully, your problem will be fixed.

  • STEP 1. First of close the game and then close the Steam client
  • STEP 2. Now press ALT+F4 to bring the power menu, their select restart

Vac was unable to verify your game session

  • STEP 3. Once your system is restarted, try running the game

3. Exit Steam

One of the easiest ways to tackle this error is to restart the steam client simply, and sometimes a simple restart is all you need to fix this issue. 

  • STEP 1. While you are on your main page of the Steam client, in the upper left corner, click on click Steam 
  • STEP 2. Once you click on it, there will be an option to Exit click on it
  • STEP 3. Once closed, wait for a minute or two and open your Steam client again
  • STEP 4. Agin click on the Steam on the upper left corner, this time click on Go Offline

Go Offline

  • STEP 5. Then Click on the option RESTART IN OFFLINE MODE

Go Offline

  • STEP 6. Wait again for a few minutes, then Click on Steam > Go Online > Restart and Go online
  • STEP 7. Finally, run the game 

4. Verify the Integrity of your Game Files

If restarting your system did not solve the problem, then you try checking the integrity of the game files. One of the major reasons behind this error is the issues with the game files. With the below steps, you can check if the system files are intact.

  • STEP 1. Head to the main page of the Steam client, now. On the top, click on LIBRARY
  • STEP 2. Once you are in the library on the left of the screen Right-click on  (Counter-Strike: Global Offensive) and then click on Properties
  • STEP 3. Once the Properties window is opened up, click the LOCAL FILES tab, then click on VERIFY INTEGRITY OF GAME FILES button

Vac was unable to verify your game session

  • STEP 4. The process can take a while; once the process is completed, try running the game

5. Repair Steam Service

If the above method also fails, then try repairing the steam service using the below steps.

  • STEP 1. Make sure that the Steam client is not running 
  • STEP 2. Go to the start menu and type cmd, now choose run as administrator 
  • STEP 3. Once the command window is opened up, execute the below command In 
C:\Program Files (x86)\Steam\bin\SteamService.exe" /repair 

Vac was unable to verify your game session

  • STEP 4. Once the command is executed, restart your system and try running the game

6. Reinstall the Game

Make sure that you are using this method as a last resort. If all of the above methods fail to work, then you have to reinstall the game.

  • STEP 1. Head to the main page of the Steam client, now. On the top, click on LIBRARY
  • STEP 2. Once you are in the library on the left of the screen  Right-click on  (Counter-Strike: Global Offensive) and then click on Uninstall

Vac was unable to verify your game session

  • STEP 3. You will be asked to delete all the files of the game, make sure to proceed
  • STEP 4. Once uninstalled, restart your system, then install the game
Conclusion:

Hopefully, the above solution has fixed the Vac was unable to verify your game session. Since there are multiple reasons behind this error, it can be hard for us to figure it out. But all these solutions target the same issues, and surely one of the solutions will work for you.

For more helpful guides on games, stay tuned. Thank you!

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