In this video, I'll be showing you how to fix valorant error code 57: "Vanguard is not initialized. Please reboot your computer" error when launching Valorant. Second method worked for me. 1. Go to C: drive then Program Files then Delete Riot Vanguard Folder. 2. Restart and Run you game again. If you find this useful please subscribe my vlogging channel up to 1000 subscriber. / @multiversepassenger