How to Flash a BIOS. 1. Obtain a USB FDD and a FDD. 2. Load into Windows. 3. Make a bootable FDD then unzip the 4 files contained in the BIOS zip file onto the FDD drive. 4. Reboot. 5. Press F2 to get into BIOS. 6. Make sure USB FDD is set to boot priority 1. 7. Press F10 to reboot. 8. Allow the system to boot into DOS. 9. Press P, and Enter. 10. Reboot the system after flashing the BIOS to complete.