|If your system supports DSR (Dell System Restore) then you can press CTRL + F11 during the POST screen. This will trigger a restore to factory defaults procedure. Follow the on screen prompts to complete the procedure.|
Before you do this BACKUP your valuable data because if you do go down this path then this will perform a destructive system restore back to factory default, all data will be erased from your system partition!
If CTRL + F11 does not work, try the procedure shown here:
☺ When everything else fails, read the instructions.