You 've probably seen various versions of system restore software on the market. Some of them are built right into your operating system. If you 're on a server, there are some restore options that the host allow you to take advantage of without installing any extra software. There are some disputes between these and proper backups that you ought to be aware about. You can not depend on system restore functions so as to add you with a full data backup, in any case.
At the end of the day, system restore is simply not a valid method of data backup or recovery. Use the better, more effective methods out there. Good Luck!