Hi Please click on the link for the Debug commands http://www.fdisk.com/fdisk/HardDrive.htm or Please Insert the Driver CD and press F12 on start up and Boot from CD And select the second option Quit without any action You would be entering Dos prompt Type Debug -F 220 L1000 0 (ENTER) -A CS: 100 (ENTER) xxxx:0100 MOV AX,301 (ENTER) xxxx:0103 MOV BX,200 (ENTER) xxxx:0106 MOV CX,1 (ENTER) xxxx:0109 MOV DX,80 (ENTER) <---"80" for hd1, "81" for hd2 > xxxx:010C INT 13 (ENTER) xxxx:010E INT 20 (ENTER) xxxx:0110 (ENTER) <-------BLANK LINE "VERY IMPORTANT" > -G (ENTER) Program terminated normally - (CTRL)-(ALT)-(DEL) to reboot system