
File History requires an extra drive or network location to be used to store many versions of folders on your computer and makes copies at a much faster rate than Previous Versions. This has the added benefit of being able to recover them if your drive fails. Previous Versions stores the history of files on the same drive that they're on so if the drive fails, you will lose the files if they aren't also stored somewhere else. So if you only have one drive which you probably do on a laptop, you can't use File History unless you have an external drive connected. Click Read more to find out how to re-enable Windows 7-style Previous Versions.