I used a free hd erase program and now get this message "error loading operating system" when the PC is turned on. I am giving this Dell to 2 young girls and wanted the hd clean and had planned to use the Dell REINSTALLATION CD to get the PC Windows xp going again. I have tried using the Dell CD when booting up and get the same notation as without the CD. I am a DOS idiot (started computers with a MAC), so don't have a clue what to do. Any help would be deaply appreciated.