1. From the PS3 XMB Home screen scroll to Settings and press the X button.
2. Scroll to Security Settings and press the X button.
3. Scroll to Parental Control and press the X button.
4. Enter the password and press the X button to confirm.
5. Select the desired security setting and press the X button.
The lower the number setting the tighter the parental restriction.
6. If you would to restrict starting a game with no parental control settings select the checkbox.
7. Scroll to OK and press the X button.
8. Your parental controls will now have changed.