Download the latest BIOS update file from the Asus website. When this is complete, the screen will show details on the current BIOS in the upper left.
On the lower half of the screen, to the left, you use the arrow keys to select the drive letter of the CD-ROM or USB flash drive, and then press the "Tab" key to switch to the right pane and select the BIOS update file.
As late as the year 2000, updating the BIOS of your motherboard was a risky endeavor that could only be done with a floppy disk and drive, and required knowledge of the DOS prompt and command line syntax.
In order to ease things, motherboard manufacturers started to incorporate simpler means of updating the BIOS without needing a floppy disk or drive.
starams5 I'm not exactly sure what it is you're trying to update, EZ-Flash 2 or your bios.
You can't update EZ-Flash 2, on rare occasions I've seen a bios update address an issue with EZ-Flash 2 but you can't install the utility separately.
When the check is complete, it will ask if you wish to go ahead with the update.