How to force restore the square dance sound system

1, first of all, before booting into the system, press F8, enter the Windows 7 advanced boot options, select "Repair Computer".

2, secondly, if there is an administrator password, you need to enter; if you do not set a password, direct "OK" can be.

3. Finally, select "DellDataSafe Restore and Emergency Backup"; select "Choose other system backups and more options", click "Next!