Asus X502CA - Manual (Page 79)

Notebook PC E-Manual 7
4. In the Advanced options screen, select System Image
Recovery.
5. Choose an account you would like to recover using a
system image file.
6. Type your account password then tap Continue.
7. Select Use the latest available system image
(recommended), then tap Next. You can also choose
Select a system image if your system image is in an
external device or DVD.
8. Follow the succeeding steps to complete the system
image recovery procedure.
NOTE: We strongly recommend that you regularly backup
your system to prevent data loss in case your Notebook PC
stops working.