UEFI Secure Boot is enabled in BIOS along with TPM but still getting the UEFI Secure Boot error.

Hey yall, this isn't MY issue, I'm trying to help my friend with this, she upgraded to windows 11 a while ago but has only tried playing valorant recently, I've had this same problem ages ago so I was able to help her through all the BIOS stuff, however, even after enabling all the secure boot stuff, she's still getting the UEFI error, the TPM 2.0 error has been fixed, but secure boot still isn't working, she's restarted a couple times, repaired game files, gone back into BIOS to double check that secure boot and the OS type has been changed to UEFI but to no avail, does anyone know how to fix this?