You’re seeing an error “VAC was unable to verify your game session” on CS: GO? You’re not alone. Many CS: GO players have had the same error occurring when they’re trying to lớn matchmake.

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This is very annoying. You can’t join matchmaking because of this error. But don’t worry. This error can still be fixed.

Fixes to try

The following are a few methods that have sầu helped many CS: GO players. You don’t have khổng lồ try them all; just work your way down the list until you find the one that works for you.

Method 1: Restart your Steam client

You may get this error because there are some corruption issues with your Steam client. To fix those issues, you should restart your client:

1)On your Steam client, click Steam in the upper left corner, then click Exit.

2)mở cửa your Steam client again.

3)Clichồng Steam in the upper left corner, then clichồng Go Offline.




5)Click Steam, then clichồng Go Online.




7) Launch your game

If this method works for you, you won’t see the error again. But if not, there are three more fixes to try…

Method 2: Verify your game files

The error may occur on your CS: GO game because there are integrity issues with your game files. You should kiểm tra your game files with your Steam client lớn see if that’s the case for you:

1)On your Steam client, clichồng LIBRARY.


2)Right cliông xã your game (Counter-Strike: Global Offensive) và cliông chồng Properties.


3)Clichồng the LOCAL FILEStab, then cliông chồng VERIFY INTEGRITY OF GAME FILES.


4) Wait until the process completes, then cliông xã CLOSE.

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5)Launch your game. Then kiểm tra to see if the error’s gone.

Method 3: Repair your Steam client

Perhaps your Steam client is corrupted, so you get the error on your CS: GO. You should try repairing your Steam client. To bởi so:

1)On your Steam client, clichồng Steam in the upper left corner, then clichồng Exit.

2)Cliông xã the Start button in the lower left corner of the screen.


3) Type “cmd“, then right clichồng Commvà Prompt or CMD and click Run as administrator.


4)In Commvà Prompt, type:

"C:Program Files (x86)SteaminSteamService.exe" /repair
C:Program Files (x86)Steam” represents where the Steam client is located. You should change this if your Steam is at a different location.
Then press Enter on your keyboard.


5)Run your Steam client và launch your game. Then kiểm tra to see if this fixes your error.

If this method helps you fix your error, great!. But if not, you may need to…

Method 4: Update your drivers

You may get this VAC error if you’re using a wrong driver or it’s out of date. You should update your drivers & see if this helps you fix your error. If you don’t have the time, patience or skills to update your driver manually, you can vì chưng it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need khổng lồ know exactly what system your computer is running, you don’t need to risk downloading và installing the wrong driver, and you don’t need to lớn worry about making a mistake when installing.

You can tải về and install your drivers by using either Free or Pro version of Driver Easy. But with the Pro version it takes only 2clicks (và you get full support và a 30-day money bachồng guarantee):

1)Download and install Driver Easy.

2)Run Driver Easy and cliông xã theScan Now button. Driver Easy will then scan your computer và detect any problem drivers.

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3)Cliông chồng the Update button next to lớn each device khổng lồ tải về the latest và correct driver for it.You can also click theUpdate All button at the bottom right to lớn automatically update all outdated or missing drivers on your computer (this requires the Pro version— if you don’t already have sầu it, you will be prompted lớn tăng cấp when you cliông chồng Update All).