The BIOS can be corrupted during normal operation, through environmental conditions (such as a power surge or outage), from a failed BIOS upgrade or damage from a virus. If the BIOS is corrupted, the system automatically attempts to restore the BIOS from a hidden partition when the computer is restarted.

How do I know if my BIOS is corrupted?

One of the most obvious signs of a corrupted BIOS is the absence of the POST screen. The POST screen is a status screen displayed after you power on the PC that shows basic information about the hardware, such as the processor type and speed, amount of installed memory and hard drive data.

Can you fix a corrupted BIOS?

A corrupted motherboard BIOS can occur for various reasons. The most common reason why it happens is due to a failed flash if a BIOS update was interrupted. … After you are able to boot into your operating system, you can then fix the corrupted BIOS by using the “Hot Flash” method.