Windows 8's failback and reset function steps

Windows 8's failback and reset function cannot be used. Tips  Lack of some files, your windows installation or recovery media will provide these files", as shown below:
Resolve steps: 1. Click the “Settings> option in the charms, as shown below: 2. Click on the “Settings“ option to change the computer settings ”, as shown below: 3. At &ldquo ; Change computer settings & rdquo; select the "General" option, as shown below: 4. Select one of the two recovery modes, "Restore the computer without affecting your file" or "Delete All content and reinstall windows”. The following figure selects “Restore the computer without affecting your files”: 5. Before installing or restoring media without inserting a USB flash drive or CD, as shown below: 6. After installing the USB flash drive or CD-ROM, etc. After installing or restoring the media, click Restore. Just, as shown below: