this morning I touched my gpu by accident whilst the system was running, and it blue screened. I turned it back on and it ran the setup, then showed an 'EFI Shell version 2.31 screen.
'map: cannot find required map name
Press ESC in 1 sec to skip startup.nsh,
any other key to continue
and won't do anything after that.
I've tried booting from a CD drive and it said:
'??(' is not recognised as an internal or external command, operable program, or batch file