My computer is equipped with Windows 11 and EndeavorOS. Using rEFInd to boot, Windows can start, but EndeavorOS cannot. How to fix this problem?
EndeavourOS doesn’t support secure boot without a lot of faffing about (see this). If you want a rolling release that supports secure boot out of the box, try Tumbleweed.
Secure boot can be disabled. It isn’t required on Windows just because it’s enabled.