If your problem sounds like this, you're in the right place:

  • Vanguard Error: VAN 25. An unexpected error with Vanguard has occurred and the client will now close.
  • I got kicked out of the game and got VAN 25, what does this error mean?
  • I got VAN 25 when starting the game.

Resolution

VAN 25 usually means Riot Vanguard couldn't complete one of its startup or system trust checks. Let's rebuild that trust so you can learn to love again get back in the game.

Try these steps in order. We’ll start with the Windows security and debugging settings most closely tied to VAN 25, then move into standard Vanguard troubleshooting. Launch your game after each step to see if it worked.

  1. Restore Windows security to a normal state. Some Windows security settings can prevent Vanguard from verifying your PC correctly. Follow our guide to restore Windows security to a normal state.
  2. Update Windows. Windows updates can include security and system service changes Vanguard relies on. Install all available Windows updates and restart your PC.
  3. Set the Vanguard service to start automatically. Having Vanguard installed won't do much good if it's not running when you try to play. If you don't use Vanguard Pre-Check to enable Vanguard to run on-demand, you'll need to set the Vanguard (vgc) service to Automatic.
  4. Remove and reinstall Vanguard. The quickest way to restore Vanguard's default settings is to manually uninstall it, then restart your PC and launch your game again to reinstall Vanguard.
  5. Perform a clean boot. Background apps or services may interfere with Riot Vanguard, and a clean boot helps you dial in on what exactly is giving you trouble.
  6. Reinstall your game. This can replace corrupted or missing game files that may be preventing Vanguard or your game from launching correctly. Follow our guide to uninstall and reinstall your game.

Still having issues?

If you still see the error after trying these steps, submit a ticket to Player Support. Make sure you attach your logs so we can take a closer look and help get you back in the game.