VAN 138Vanguard doesn’t work on virtual machines
You’re running the game or Vanguard in a virtual machine or virtual environment.
Try these in order
- Install and run both the game and Vanguard on a normal Windows installation. Vanguard isn’t supported in virtual machines.
- Uninstall Riot Vanguard from Windows Apps, restart your PC, then launch your game so Vanguard installs again.
- Do a clean boot to find out whether a background app or service is getting in Vanguard’s way.
- Check your firewall isn’t blocking the Riot Client from reaching Riot’s servers.
- Reinstall the game to replace any damaged or missing game files.
Still broken? Restart your PC once more, then contact Riot Support with your logs.
Based on Riot’s official guide.
More vanguard errors
- VAN 68Vanguard lost its connection while the game was runningVanguard lost the session it needs while your game was starting or playing.
- VAN 1067Vanguard ran into a problem while startingVanguard hit an unexpected issue while starting or checking in with Windows.
- VAN 128Vanguard couldn’t finish its startup checksWindows security or debugging settings are stopping Vanguard from verifying your PC.
- VAN 185Vanguard, Riot Client and the game lost their sessionA session or connection problem between the game, Riot Client and Vanguard.
- VAN 84Vanguard couldn’t confirm your PC is readyVanguard couldn’t verify your PC or hit a problem while starting up.