Netboot. You can create a bootable image that remote computers can, well, boot off of. We do it at work, because customers like to delete demo files, programs, and system files. Once you reboot, all the damage never occurred to the image, so its all good. Get one of your windows friends over, delete the system file, have them do as much crap as they want to, reboot and it will be perfect. Its like a Macgic trick. RDRR