your uefi might have a setting for secureboot for locking it down. I think my desktop mobo, I had to change a setting for secureboot from windows-only to be able to enroll mok. I don't remember exactly what it was called now
Just installed Helldivers 2 but I keep running into the same crash. After the intro video, early in the first cutscene, the game freezes. The third time, it opened this webpage in my browser: https://gameguardfaq.nprotect.com/eng/con_13.html