Why is error code VAN 1067 prevalent on Windows 11 systems specifically?

VAN 1067 is more prevalent on Windows 11 because Windows 11 itself requires TPM 2.0 and Secure Boot for installation and optimal functionality. Riot Vanguard, Valorant's anti-cheat, leverages these same security features to ensure a cheat-free environment. If these fundamental Windows 11 security settings are disabled or misconfigured in the system's UEFI/BIOS, Vanguard cannot operate as intended, leading to the VAN 1067 error.