Instructions
Turn off your PlayStation 3.
Hold down the "Power" button. The game system powers on and then powers off.
Press the "Power" button again until you hear two beeps, then release the button.
Plug in your controller via the USB outlet when prompted.
Press the ̶0;PS̶1; button on the controller. The Recovery menu appears.
Select ̶0;Restore File System̶1; from the Recovery menu. Follow the onscreen instructions to check and restore corrupt and missing files on your system.