Have you ever accidentally deleted or over-written a file that contained important information? Windows 8 has a feature called "File History" that automatically saves older versions of your files so that they can be restore later.
Unfortunately, this feature is not enabled by default. To turn it on you have to open the System and Security control panel. This feature does require a second drive (such as an: internal, external or a network drive) in order to use it. Open Advanced settings, set how often you would like the system to back up your files and how long it should keep them.
After the feature is enabled, Windows will backup the files in the background. If you need to recover a file, open the File History control panel click the Restore personal files link then select the file from the list.