Windows Could Not Start the VGC Service on Local Computer

Troubleshooting the Riot Vanguard VGC Service Error in Windows

The Riot Vanguard anti-cheat system's VGC service is crucial for playing games like Valorant. If you encounter the "Windows could not start the VGC service on local computer" error, this guide offers several solutions.

Common Error Messages:

• Windows could not start the VGC service on Local Computer.
• Error 1: incorrect function.
• Error 1053: The service did not respond to the start or control request in a timely fashion.
• Error 109: The pipe has been ended.

Important Note: Before proceeding, back up your game saves using a reliable backup program to prevent data loss.

Solution 1: Reinstall Riot Vanguard

A clean Vanguard installation often resolves the issue.

1. Open Control Panel.
2. Under Programs, select Uninstall a program.
3. Locate Riot Vanguard, right-click, and choose Uninstall.
4. Confirm the uninstallation.
5. Relaunch Riot Games; Vanguard will reinstall automatically.
6. Restart your computer.

Solution 2: Reinstall or Update Realtek Audio Driver

Reinstalling or updating your Realtek Audio driver has proven effective for some users.

1. Search for "device manager" and press Enter.
2. Expand Sound, video and game controllers.
3. Right-click your Realtek Audio driver and select Uninstall device.
4. Restart your computer; Windows will reinstall the driver. Alternatively, manually update the driver.

Solution 3: Disable Test Mode (CMD)

Test Mode allows unverified drivers, potentially causing conflicts. Disable it using Command Prompt:

1. Open Command Prompt as administrator.
2. Run these commands (press Enter after each): bcdedit -set TESTSIGNING OFF bcdedit -set NOINTEGRITYCHECKS OFF
3. Restart the VGC service.

Solution 4: Verify Unsigned Drivers

Unsigned drivers can trigger the error. Use the File Signature Verification tool:

1. Open the Run dialog (Win R).
2. Type sigverif and press Enter.
3. Click Start in the File Signature Verification window.
4. Investigate any detected unsigned drivers; update outdated ones.

Solution 5: System Restore

A recent update or driver might be the cause. System Restore can revert these changes:

1. Open the Run dialog (Win R).
2. Type rstrui and click OK.
3. Select a restore point and follow the on-screen instructions.

By trying these solutions, you should be able to resolve the VGC service error and get back to gaming. Remember, regular backups are essential for data protection.

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