Discord: Win11 Creator – Mini PC doesn't boot anymore

Discord: ludipraxa: I tried installing a custom CTT Windows ISO on my Minisforum UM890 Pro. The installation reached 100%, but on reboot, I got stuck in a BIOS loop. If I try to boot from the Windows Boot Manager or the USB drive, the screen goes black for 2 seconds and kicks me right back to the BIOS.

I tried disabling Secure Boot, but the motherboard refuses to save the BIOS settings (it keeps reverting to default). Even a physical CMOS pin reset didn’t work. Has anyone run into this similar issues or ideas how this could be fixed?

Have you pulled the CMOS battery? That will reset the BIOS. Keep it out for at least 5 minutes before you put it back and bootup.