Issue arises when trying to boot Windows without a CSM, possibly indicating a damaged system.
Issue arises when trying to boot Windows without a CSM, possibly indicating a damaged system.
I was attempting to enable secure boot for my computer to run games, but it’s not showing anything or launching BIOS. It keeps showing error codes 22 and 97 before shutting down. I cleared the CMOS by removing the battery, which worked once, but now when I re-enter BIOS I turned off CSM because I might have made a mistake afterward. The motherboard still reports errors even with onboard graphics, and I’m stuck without a new motherboard or CPU.
Reset the BIOS settings using the built-in CLEAR_CMOS jumper, then turn on CSM.
Disconnecting the battery alone isn't sufficient.
Unplug the power source to remove any remaining charge from the PSU capacitors.
Remove the battery and short the contacts in the onboard battery socket.
After these steps, you cannot disable CSM; the system must be booted.
You will need to convert your drive to GPT first (with mbr2gpt).