but does the BIOS see the CD ROM?
With the CD drive installed can you enter BIOS setup to set the computer to boot from the CD Drive?
If so, can you then get to the Windows Safe Mode set of options? Safe Mode guidance here;
http://www.bleepingcomputer.com/tutorials/tutorial61.html#winxo
If you can get to Safe Mode, open the CD Drive, insert the XP disk and then reboot. Perhaps you can repair the installation from there.
Mark
I have an emachine s2485, run Windows XP Home Edition with service pack2. Several weeks ago Windows started to just reboot on it's own. Became impossible to do anything on the computer as it would continually reboot. I starting sending the reports to Microsoft as requested and it always said there was a problem with a drive. Tried to use my DVD/CD combo, Windows would not recognize cd, music or software, or any DVD's. I uninstalled through device manager, still same problem. I then physically disconnected the CD/DVD drive. Windows boots no problem and the constant rebooting stopped. I purchased a new drive thinking that was the problem Now Windows will not boot at all with the new drive connected. Tried the old drive, will not boot. Local computer repair shop told me I'd been hijacked and would have to run the restore disk to reinstall Windows. Can anyone offer any suggestion? I can't run the restore disc, as I can't get windows to boot with the cd connected.

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