You can upgrade your BIOS without having an operating system installed. You will, however, need access to another computer with an Internet connection. Upgrading your BIOS takes around ten minutes, including downloading the update itself. You can upgrade your BIOS by floppy disk, CD or flash drive.

Can you update BIOS with Internet?

ASUS EZ Flash 3 allows you to download and update to the latest BIOS through the Internet without having to use a bootable disk or an OS-based utility. To Update the BIOS by USB: 1. Enter the [Advanced Mode] of the BIOS setup program.

What do you need to update BIOS?

If you do need to update the BIOS from the BIOS menu itself, usually because there is no operating system installed, then you’ll also need a USB thumb drive with a copy of the new firmware on it. You’ll have to format the drive to FAT32 and use another computer to download the file and copy it to the drive.