: Your BIOS must be in UEFI mode, not "Legacy" or "CSM". Troubleshooting Common Issues
Windows 11 users must meet specific hardware security standards for Vanguard to run. If these are not met, you will see errors like or VAN9003 . download vanguard windows 11
: Visit the official site for Valorant or League of Legends and download the installer. : Your BIOS must be in UEFI mode, not "Legacy" or "CSM"