These programs are for general reference... Whatever happens when you use (or don't use) them is not my fault. I make typos - use at your own risk. Improper use of DEBUG can _literally_ format your hard drive without warning among many other nasty things.
C:\>debug -a xxxx:0100 int 18 xxxx:0102 -gThe X's can be anything, debug will set them for you. When you press ENTER after typing the G, it just may prompt you to go into CMOS setup.
C:\>debug -fcs:200 400 0 -a xxxx:0100 mov ax,301 xxxx:0103 mov bx,200 xxxx:0106 mov cx,2 xxxx:0109 mov dx,80 xxxx:010C int 13 xxxx:010E int 20 xxxx:0110 -g Program terminated normally -qThen try the restore again... it should prompt you for your format number. This little program came from a tech at Packard Bell, and I've used it a few times successfully.