You’re seeing an error “VAC was unable khổng lồ 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 helped many CS: GO players. You don’t have sầu 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, clichồng Steam in the upper left corner, then cliông chồng Exit.

2)mở cửa your Steam client again.

3)Cliông chồng Steam in the upper left corner, then cliông chồng Go Offline.




5)Cliông chồng Steam, then click 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 lớn 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 khổng lồ see if that’s the case for you:

1)On your Steam client, cliông xã LIBRARY.


2)Right click your game (Counter-Strike: Global Offensive) and click Properties.




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


5)Launch your game. Then check 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 vị so:

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

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


3) Type “cmd“, then right clichồng Commvà Prompt or CMD và cliông chồng Run as administrator.


4)In Command 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 and launch your game. Then kiểm tra lớn 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 lớn update your driver manually, you can bởi vì it automatically with Driver Easy.

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

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

1)Download and install Driver Easy.

2)Run Driver Easy và click 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 each device khổng lồ download the lathử nghiệm và correct driver for it.You can also clichồng 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 it, you will be prompted to lớn nâng cấp when you cliông chồng Update All).