: Visit the manufacturer's support site to download the latest BIOS package, which typically comes as a file containing a firmware file. Find a Flashing Utility
For most modern motherboards (manufactured in the last ~10 years), using a bootable CD is no longer necessary. Instead, manufacturers recommend: Flashcd1 Zip Better __exclusive__ flashcd1 zip better
Whether it is "better" depends on your hardware and comfort level: Best for Older Systems : Visit the manufacturer's support site to download