First thing I tried to do was run System Restore and restore to last weeks settings (before she put in XPS). But XP ran into problems, no matter which restore point I chose--even back one month ago, it could not restore to a previous state.
So then I found a forum thread that pointed me to a XPS removal tool from Rogosoft. I ran it, and got rid of the XPS and its remnants. The performance seemed to pickup, but the System Restore function still does not work. The menu comes up fine, and I can see what my restore points were, but when I select one of them, it does its thing, reboots my machine, and then when XP starts up again, I get the error message that System Restore was not successful.
Other Windows functions seem to be performing very slow too. Example, when I tried to run disk cleanup, it takes forever to load. Not sure if/what is gunking up my machine. Any advice?