|I've seen this problem on legacy systems before. The way I went around it was to get a Windows 95 or 98 Bootdisk. You can download it here: http://boot.oldos.net/boot98.exe You'll need 1 formatted floppy disk and a floppy drive.|
Insert the disk, and make sure the floppy drive is set as the first boot device in the BIOS. There'll be a menu to appear. Select to start the system with CDROM support. Keep an eye out for the drive letter for your CD/DVD drive. When you finally get to the command prompt, type in the following pressing enter after each line:
Remember to interpolate R: for the actual drive letter of the CD/DVD drive. If you don't see the drive letter, the drive letter may be D.
Also, Google is your friend.