Hi: my xps computer is several years old. Seems I might have had a system fix virus wipe me out. Can't boot. Error windows\system32\config\system file is missing or corrupt. Windows tries to start, but this error comes back. Also there are no bootable devices. Would a windows set up cd even work? I misplaced mine, so, would I be able to get one some where? Hopefully free? Any help is appreciated. Thanks.