If you’re encountering the VAN 81 error while trying to launch League of Legends, you’re not alone. This issue is commonly caused by Riot’s anti-cheat system, Vanguard, failing to start correctly. Whether it’s because of disabled services, leftover processes, or corrupted installation files, this guide will walk you through the essential steps to diagnose and resolve the issue. Follow each instruction carefully to restore full game functionality, no reinstall of League required in most cases.

Step 1 – Terminate Riot-Related Processes Using Task Manager

Begin by ensuring there are no lingering processes that could interfere with Vanguard’s startup.

  1. Press Start and search for Task Manager.
  2. Click on the Processes tab.
  3. Look for and end the following tasks:
    • League of Legends
    • Riot Client
    • vgtray.exe or vgc.exe (related to Vanguard)
  4. Right-click each and select End Task.
  5. Use the search bar inside Task Manager to speed up this step.

For a detailed walkthrough, you can refer to this helpful video:

Step 2 – Enable VGTray.exe at Startup

The Vanguard tray application (VGTray.exe) must be allowed to run during system startup for Vanguard to initialize properly.

  1. Open Task Manager again and navigate to the Startup tab.
  2. Locate VGTray.exe on the list.
  3. If its status says Disabled, right-click and choose Enable.

If you do not see VGTray.exe, proceed to Step 5 to reinstall Vanguard completely.

Step 3 – Verify VGC Service Is Enabled via System Configuration

The VGC service is Vanguard’s core system component. If it’s disabled, Vanguard won’t operate.

  1. Press Start, type Run, open it, then enter msconfig.
  2. Click on the Services tab.
  3. Scroll down and locate VGC.
  4. Ensure it’s checked. If not, check it, click Apply, then OK.
  5. Restart your computer.

After this restart, try to launch League of Legends. If the error persists, move to the next step.

Step 4 – Manually Remove Vanguard Services via Command Prompt

If Vanguard services are not repaired through the client, remove them manually so Riot Client can reinstall them correctly.

  1. Press Start, type CMD, right-click it, and select Run as Administrator.
  2. Enter the following commands one by one, pressing Enter after each:
    • sc delete vgk
    • sc delete vgc
  3. You should see a “SUCCESS” message for both commands.
  4. Close the Command Prompt and restart your computer.

Step 5 – Delete the Riot Vanguard Folder from Your System

Remove residual Vanguard files that may interfere with a clean reinstall.

  1. Open File Explorer.
  2. Navigate to the following directory: C:\Program Files
  3. Find the folder labeled Riot Vanguard.
  4. Right-click the folder and choose Delete.
  5. If you receive a message saying the folder is in use, ensure Vanguard processes are not still active.

Step 6 – Reinstall Vanguard via the Riot Client

Once the old files are deleted, let the Riot Client install Vanguard afresh.

  1. Open the Riot Client and log in to your account.
  2. Select League of Legends from your games list.
  3. If Vanguard is missing, you should see an Update button instead of Play.
  4. Click Update to initiate a new installation of Vanguard.
  5. Once the update finishes, restart your computer once more.

For additional visual guidance on this step, check out the following video:

Final Step – Launch League of Legends

After restarting your system, open the Riot Client and launch League of Legends. The VAN 81 error should no longer appear.

Additional Troubleshooting Tips

  • Run Riot Client as Administrator to avoid permission conflicts.
  • Install all pending Windows updates to ensure compatibility.
  • If you use antivirus software, whitelist Riot Client and Vanguard folders.
  • Still not working? Consider reaching out to Riot Support.

For an in-depth guide with visuals, see this helpful tutorial by TechFixIT:

TechFixIT: How to Fix VAN 81 Error

Frequently Asked Questions

What is the VAN 81 Error in League of Legends?

The VAN 81 error indicates that Riot Vanguard is not running or has failed to initialize properly. This prevents League of Legends from launching. Most often, it occurs due to disabled services, corrupted installation files, or running Riot processes in the background.

Learn more about Vanguard errors on thespike.gg.

What Causes VAN 81?

  • Disabled Vanguard services (vgk, vgc)
  • VGTray not running on system startup
  • Corrupt or incomplete Vanguard installation
  • Background Riot or League processes still active
  • Antivirus software blocking Vanguard
  • Outdated operating system or drivers

Additional troubleshooting information is available at MiniTool’s guide.

Do I Need to Reinstall League?

No. In most cases, repairing or reinstalling Vanguard via these steps is sufficient. Only reinstall League of Legends if the issue persists after completing all steps. Refer to full reinstall instructions via esports.gg.

Is It Safe to Delete Vanguard Services Using CMD?

Yes. Running sc delete vgk and sc delete vgc safely removes Vanguard as Windows services, allowing a clean reinstall. The next time you launch Riot Client, these are automatically reinstalled.

I Don’t See VGTray in Task Manager. What Should I Do?

If VGTray.exe is missing from startup programs, Vanguard may not be installed. Proceed with Step 5 to remove any residual files and then reinstall via Riot Client.

Why Are Restarts Necessary After Each Step?

Restarts ensure service changes and file deletions are committed correctly. Skipping system restarts may cause Vanguard to remain inactive or improperly configured.

Can These Steps Fix Other Vanguard Errors?

Yes, many of these instructions also apply to other Vanguard-related errors such as VAN 9001 or VAN 84, particularly if they’re caused by startup or service conflicts.

For code-specific support, consult Riot’s official Troubleshooting Portal.

The Riot Client Doesn’t Show the Update Button. What Should I Do?

Try restarting your PC, then opening Riot Client as an administrator. Ensure your internet connection is stable. If issues persist, relaunch the client manually.

Is Vanguard Required to Play League of Legends?

Yes. Beginning in 2025, Riot has made Vanguard mandatory to run and play League of Legends. The game will not launch without it.

Still Experiencing Issues?

If you’ve followed these steps and the VAN 81 error persists, you may need to inspect advanced system startup settings or consider a clean install of League of Legends. For further assistance, explore these additional resources:

This guide offers a thorough approach to resolving VAN 81, helping you repair Vanguard and return to the Rift without delay. If future Vanguard errors arise, many of these same steps will remain effective.