You are either very brave or seriously in need of adrenaline rushes. There have been many boards borked using the windows utility, I've heard of none using the dos based one.
It's very easy to use a USB flash drive to flash the bios. I have an old 64Mb one that I use. Has space for all the bios versions which I keep in individual folders on the drive. Makes it easy to flash a new bios and go back to a previous one if it causes problems.
Biggest problem is having to have to go into the bios each time to change the boot order of the hard disks to get it to boot from it, takes a whole 30secs
It's very easy to use a USB flash drive to flash the bios. I have an old 64Mb one that I use. Has space for all the bios versions which I keep in individual folders on the drive. Makes it easy to flash a new bios and go back to a previous one if it causes problems.
Biggest problem is having to have to go into the bios each time to change the boot order of the hard disks to get it to boot from it, takes a whole 30secs