[Resolved] vac was unable to verify the game session CSGO 2020

fixed vac was unable to verify the game session

Easy Fixes for “vac was unable to verify the game session

If you’re reading this, you’ve probably received the following error: “Matchmaking Failed – VAC was unable to verify your game session”. We’ve got some good news, and some even better news for you. The good news? You haven’t been VAC banned! The better news? There’s an easy fix that works in 2020

What does this error mean?

This error is caused by third party software interfering with your game or Steam. To resolve the issue, you’ll need to disable or remove the problem software from your machine.

What typically causes this error?

There are a number of common software conflicts that can cause this error. If you are running any of the following software, please disable it while playing:

  • CCleaner
  • Powershell
  • Sandboxie
  • Cheat Engine
  • IObit Start Menu 8
  • Process Hacker
  • DLL Injectors
  • Hypervisors
  • Steam Idlers

Fix #1: Verify Integrity of Game Files

  • Open Steam Client
  • Select CSGO Right click > Properties
  • fix vac was unable to verify the game session
  • Go to Local Tab > Click Verify Integrity of Game Files
  • steam data-lazy-srcset= csgo > properties” width=”625″ height=”642″>
  • Wait until the process completes & Restart Pc

After completing the above, your CS:GO Matchmaking should be working, and the “Matchmaking Failed – VAC was unable to verify your game session” error should be Resolved. If, however, it’s still occurring, continue reading Fix #2 below.

Fix #2: Repair the Steam Service

The error may also indicate a Steam service failure. Please try repairing the Steam service:

  • Exit Steam.
  • Click Start > Run (Windows Key + R).
  • Type the following command:
    “C:Program Files (x86)SteambinSteamService.exe” /repair
  • Launch Steam and test the issue again.

Note: This command requires administrator privileges and may take a few minutes. If you have installed Steam to another path, please replace C:Program Files (x86)Steam with the correct path.

More Info On Steam Repair

Fix #3: Restore boot settings to default

Kernel integrity checks, kernel debugging, and Data Execution Prevention (DEP) must be set to default to play on VAC secured servers.

If you receive the following error when entering these commands they are already set to default:

  • The value is protected by Secure Boot policy and cannot be modified or deleted.

To change boot settings to default please follow the steps below:

Note: If you are running Windows 8 you will need to press Windows Key + X and select Command Prompt (Admin).

  • Exit Steam.
  • Click the Start button, then All Programs, and Accessories.
  • Right-click on Command Prompt and click Run as administrator….
  • In the command prompt, type the following commands and press Enter after each command:
    1. bcdedit /deletevalue nointegritychecks
    2. bcdedit /deletevalue loadoptions
    3. bcdedit /debug off
    4. bcdedit /deletevalue nx
  • Restart your computer.
  • Launch Steam and test the issue again.

Fix #4: Repair system files

There may be corrupt system files that are causing this issue. The following instructions will run a critical system file check on your Windows installation, replacing any missing or damaged files:

Note: If you are running Windows 8 you will need to press Windows Key + X and select Command Prompt (Admin).

  • Exit Steam.
  • Click the Start button, All Programs, and Accessories.
  • Right-click on Command Prompt and click Run as administrator….
  • In the command prompt, type the following command and press Enter:
    • sfc /scannow
  • Once the operation has completed please restart your computer, then launch Steam and test the issue again.

Fix #4: Restart your computer

If the error persists on all servers it may be resolved by exiting Steam and restarting your computer.

Fix #5: Reinstall CS:GO

If the above Fixes haven’t worked, Its most likely Game file issue and you need to completely reinstall the game.

  • Open Steam Client
  • Under Library Right click on CSGO> Manage
  • Click the Uninstall Button and wait for the process to complete
  • After Complete uninstall you need to go to steam library and install CSGO.

Check if it has resolved the error “Matchmaking Failed – VAC was unable to verify your game session” if not try out the next fix

Fix #6: Run Steam as an Administrator

Sometimes Steam client causes Issues without admin Privileges on the computer.

  • Go to the directory where Steam is installed on your computer. This is usually C:Program Files (x86)Steam.
  • Now, open the Steam folder and locate the ‘Steam.exe’ file, right-click on it, and then click on Properties from the context menu.
  • Switch to the Compatibility tab and mark the ‘Run this program as an administrator’ checkbox.
  • Click Apply to effect the change, and then click the OK button.
  • Next, locate the ‘GameOverlayUI.exe’ and right-click on it. Select Properties from the context menu.
  • Switch to the Compatibility tab and mark the ‘Run this program as an administrator’ checkbox.
  • Click the Apply

Check if it has resolved the error “Matchmaking Failed – VAC was unable to verify your game session” if not try out the next fix

Fix #7: Delete Temporary Files

Deleting the temporary files that have been stored by your computer over time can help resolve the ‘VAC unable to verify game session’ error. The files might be corrupt. Follow these easy steps:

  • Open the Run command by holding the Win key and pressing R.
  • Type ‘%temp%’ in the text box and hit Enter or click the Ok button.
  • Select all the items in the list by pressing Ctrl + A. Then press Shift + Delete to clear them.
  • Click the Yes button to confirm the action if prompted.
  • Launch Steam and see if the problem has been resolved.

Setup Proper CSGO Launch Options & Enjoy Max Performance.