System Restore is a popular feature included with Windows XP. You can find it on XP by clicking the start menu, programs, accessories and then system tools. System Restore works by automatically recording the state and settings of your computer for certain days of any given week, and also allows the user to create a restore point. After there is a restore point it means the user can use System Restore to revert the system to the way it was at that previous point, and also without effecting any personal data files. This is especially useful if the computer has a bug or error, because the user can simply revert the computer to a time when this buy or error wasn't occuring.