Basically, System Restore is like a little hound that runs behind the scenes taking "snapshots" of various parts of the Microsoft Windows XP operating system. So, if a part of Microsoft Windows XP stops working one day, the System Restore utility is able to reference one of the "snapshots" it took and restore your system from a previous day (a day when your computer worked). It's kind of like going back in time to a day when your computer worked. All your current data (Microsoft Word files, ...