I was trying to reinstall Windows ME after a failed attempt to use my modem with Windows 2000; I formated the whole C partition and then received a message that read I couldn't make a clean install, then I got an error message stating that no operation system was found. Suddenly everything went black, the light of the start button was on, but nothing happened, couldn't even reach the BIOS, had to unplug my machine. (Won't read any floppy or CD). My data is all backed up, but I dunno if I have lost my hard drive. The computer is a Compaq Presario 5BW353.