I think your safest bet is to do a "Repair Install" of XP
this is NOT the recovery console--
you actually run setup-- the difference is that you will
not lose any files.
Used like this setup just goes through-- puts all the settings/files back to their defaults-- but skips over all the intact parts and "foreign files" your stuff. I have done this many times... piece of cake.
This will make sure that everything is put back right-- we could bang our heads against the wall all night --and still end up with a problem trying to fix this manually.
Only one question-- you do have a full XP version, correct??
Not some "recovery disc"??
here's a guide from Tweak XP's site:
- Make sure the BIOS is set to boot from the CD (put the CD above the HD in the boot order)
- Insert the XP CD and boot to it
- When you see " To setup Windows XP now, press ENTER", go ahead and press ENTER
- You will now see an option to repair Windows by pressing "R". Do not select this option - it will only take you to the Recovery Console which is not what we want to do. Instead, choose to continue the installation
- When you see the license agreement, press F8 to agree
- On the next screen make sure your current XP installation is selected and then press "R" to repair XP
- At this point XP will begin to install on top of itself, replacing damaged, missing or altered system files. Follow the instructions on the remaining screens to complete the Repair Install. It will look very much like a normal (new) OS installation.
If all goes well your repaired XP installation will remain iintact, keeping your personalized settings and installed programs as they originally were. Remember, choose the second repair option, not the first.