If worse come to worse and you cant get it, Unplug your system, Open the computer. Unplug your harddrive or harddrives, then restart the computer with the harddrives unpluged. You should get a bios menu when it starts up, Once you get the bios's setting to come up, Set the bios for the CD-Rom to boot up first after that stick your windows cd in, now shut down your system. Reconnect your Harddrive, or Harddrives. now start your computer, you should now be able to do two things, reinstall windows, repair windows, That should fix your issure, it sounds scary but its not, and it wont take long to do :) I had to do this myself a few months ago :) I hope you have some stuffed backed up if the repair dont work, it sounds like you might have to do a full reinstall. Peace Scott