Flashing the BIOS via USB is a process that involves updating or reinstalling the firmware that controls your computer’s motherboard. To begin, you’ll need to download the correct BIOS update file from your motherboard manufacturer’s website House Cleaning Raleigh. Once downloaded, format a USB drive to FAT32 and copy the BIOS file onto it. Next, restart your computer and enter the BIOS setup by pressing a specific key (usually F2, F12, Del, or Esc) during boot.