System Store: It is strongly recommended that you always create a restore point
before you do any major changes to your computer. If you later experience a problem,
you can choose a restore point, and recover your computer back to that point in time.

NOTE:Beore Restore, please backup all important data on drive c:

to restore system by wisefixer :
1,run wisefxier
2.click backup->restore,choose a restore point, and then click "restore".
3. following the instructions for restoring.