"NTLDR missing, press ctrl+alt+del to reboot" ? Download XP Pro boot floppy image from here. It is a compressed image, you'll need to uncompress it and write to a floppy disk with a floppy image writer, for example Floppy Image v1.5.2. Before you boot, take a look at its boot.ini file and make sure it points to the right drive and directory. I made it so that by default it starts XP from the first partition on the first hard disk drive from \WINDOWS directory. This might / should work on XP Home too, but I haven't tested it myself. The boot floppy does nothing else than boots from floppy drive, looks for XP in location specified in boot.ini, and then starts XP from there. There are no recovery commands or anything else.