This is from distant memory of Windows 9X and is NOT for the faint hearted!. .Use FDISK /MBR to restore your master boot record on your primary boot disk (C
. .First boot your PC from a floppy disk - The windows startup disk is favourite.. .At the A
prompt type FDISK /MBR. .This should restore the master boot record on your C: drive and when you restart your CD Drive should be recognised.. .This is always assuming that you are not suffering from a hard failure of the CDROM drive or other hardware failure and that the IDE channel that the CDROM is attached to is enabled in your BIOS etc etc etc.. .. .Good luck