When it blocks something, a Riot Vanguard notification appears above the Windows system tray area. Players have complained Vanguard blocks legitimate apps even when they’re not playing the game.

That software has been somewhat controversial because it blocks apps. You can’t play Valorant without the Riot Vanguard software installed and active. That Riot software comes installed with the game to prevent players from cheating in Valorant. Vanguard is the anti-cheat software for the Valorant game. If you need to fix one of those issues, check out its potential fixes below. Consequently, players can’t play Valorant because of those errors.

Those two Vanguard errors arise when players try to launch Valorant in Windows 11. Van 9001: This build of Vanguard requires TPM version 2.0 and secure boot to be enabled to play. Please relaunch the client to restore anti-cheat function. Vanguard anti-cheat has encountered an error. Those errors have the following messages:

Both of those issues are associated with Valorant’s Vanguard software. The Van9001 and Windows 11 Valorant anti-cheat errors are two of the most widely cited Valorant issues. However, since Windows 11, more players have reported errors arising for that game on Microsoft’s latest desktop platform. Valorant is still a relatively new first-person shooter multiplayer game for Windows 11/10. Home › Windows 11 › How To › Fix Valorant’s Vanguard Windows 11 errors

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