You don't need a floppy disk drive to update the Bios, you can use a USB drive. For that MB, I would say Vista is not a good choice. I like Vista, running it on 2 pc's I just built and not one problem with either one. Both are ASUS mb, one Maximus Formula, one P5E-VM HDMI. Older hardware just causes to many problems with Vista, stick with XP until you get your mb back, or limp it along with Vista.