In this video we demonstrate how you return your Nintendo Wii to factor defaults. To confirm, this will return the Nintendo Wii back to the same state as it was when you first purchased it. By returning the Wii to factory defaults you will remove any game saves, downloaded content and your Nintendo account from the Wii.
Returning the Nintendo Wii back to factory defaults will not unlock a console if it has ban from Nintendo’s network, and it will not downgrade the firmware (operating system) to a pervious version. You will also need to disable parental controls before you can reset the console to factory default.