I needed to do it because of pop ups stating it was busted.
It apparently is ok because I'm still able to use my pc.
However, I was also getting another pop up when I was trying to install snapshot/restore programs.
It stated that Windows Installer was not working or I was in Safe Mode.
I'm not in Safe Mode.
When I did the MBR I looked for a listing for Windows Installer but didn't see one.
How does a novice fix this? SP2 is on the XP disk and I believe Windows Installed is part of SP2.