Here's how to Fix Windows PC won’t boot after BIOS Update.
Here are some troubleshooting steps if your Windows PC won't boot after a BIOS update:
- Reset the CMOS to undo any changes made during the BIOS update. Unplug the power cable and remove the CMOS battery on the motherboard for 15 minutes. Put the battery back and reconnect power before turning on.
- Boot into Safe Mode if you can access Advanced Startup options. Press F8 or the correct key for your PC to bring up the menu. Choose Safe Mode and see if it will boot.
- Roll back to a previous restore point before the failed BIOS update, if System Restore was enabled on your PC.
- Reinstall the previous BIOS version if you have it saved or can download it from the manufacturer website. Consult your motherboard manual on how to flash the BIOS.
- Remove peripheral devices and non-essential hardware and try booting again. A faulty component could be preventing POST.
- Reset BIOS to factory settings by locating the clear CMOS jumper on the motherboard. Refer to your motherboard manual for exact steps.
- Update BIOS using a bootable USB drive with the BIOS file. Put the files on a FAT32 formatted USB and rename the BIOS file to match your manufacturer instructions.
- If nothing works, the BIOS chip itself may be corrupted and need replacement. Contact the manufacturer or a computer technician for further troubleshooting.
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