is a new feature introduced in Windows 8
that automatically backs up files that are in your libraries
(C:\Users\(user-name)\Contacts), Internet Explorer favorites
(C:\Users\(user-name)\Favorites), and your desktop
File History was also integrated with HomeGroup
to make it easier for someone to set up File History backup for all members of a home network. Once a selected drive is recommended from a PC on the HomeGroup, each HomeGroup member can accept and select to use the recommended drive for their File History. If they do, their libraries, desktop, favorites, contacts, and SkyDrive are automatically backed up to a network share of the recommended drive on the PC that recommended it.
This tutorial will show you how to recommend
the selected "local" (internal or external) or "network" drive
for your file history
on your Windows 8
PC to all joined members of your homegroup
to save their file history on and share your saved file versions.