Ok I'm trying to re format my computer and the it won't boot from the disc drive. I have set it up right in the BIOS and the disc is working (tested in other computer), the drive is also working. When I hit F12 to go into the boot menu and hit the cd drive I get something along the lines of "this drive is not available. press F1 to retry or F2 for the start up menu". For some reason when I start the computer it is not recognizing the drive until windows is already loaded. Any fixes for this?