Valorant VAN9003 after Windows 11 reinstall, how do I fix Secure Boot?

Question

I reinstalled Windows 11 and now Valorant throws VAN9003 before I can even queue. Vanguard says Secure Boot / TPM stuff is wrong, but Windows says I am on Windows 11 so I assumed it was already fine. I did not change hardware. I only wiped the drive and installed fresh. BIOS menus are confusing and I do not want to brick anything by pressing random secure boot buttons. What exactly should I check first?

Packet Panda · Accepted Answer

VAN9003 after a Windows 11 reinstall usually means Secure Boot is disabled or Windows was installed in a mode Vanguard does not like. Check it safely: 1. Press Win + R, type msinfo32, press Enter. 2. Look for: - BIOS Mode: should be UEFI. - Secure Boot State: should be On. 3. If BIOS Mode says Legacy, that is the bigger issue. 4. If Secure Boot is Off, reboot into BIOS/UEFI. 5. Enable TPM / fTPM / PTT. 6. Enable Secure Boot. 7. If your BIOS has “OS Type,” choose Windows UEFI Mode. 8.

Valorant VAN9003 after Windows 11 reinstall, how do I fix Secure Boot?

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