Howdy, I'm a new comer here, mainly because I've never had something like this happen to me before. My computer starts up and then goes to the POST screen, at which point it says "Boot from CD:_" and then to "Press any key to boot from CD...." Now obviously pressing keys isn't helping me, or else I wouldn't be here. It then goes to a pure black screen for about 30 seconds. Next, multiple, white progress bars pop up. After about 5 or so minutes of that it says, "Windows could not start because the following file is missing or corrupt: \Windows\System32\Config\System You can attempt to repair this by putting in the CD blah blah blah" Now that is fine and dandy and all, but I can't get it to boot from the Windows XP Pro (upgrade) CD! Any other suggestions that you guys could give? I've told it to boot from the CDROM first, but it just doesn't want to. (Just as a side note, what causes this to happen? I was just talking on aol instant messenger, when my computer started going very very slow and unresponsive. So I tried to restart my computer and it just went completely unresponsive. I ended up just clicking the restart button, and then got into this whole mess. HILF MIR BITTE!!!) edit: I saw this thread but it didn't say anything about how or why my computer wouldn't want to boot up from the CDROM.