My friends (a couple) recently purchased a new Dell computer with XP Home Edition installed. When I worked on their computer recently (getting rid of spyware), I noticed that the System Restore option is non-functional on the computer, though C drive Monitoring has been active (since the 'puter was set up in their home).

No matter what checkpoint I tried using as the restoration point, it wouldn't work.

Is there some type proprietary rights that Dell 'puters have that would have caused this?