Instructions
Power on the Wii by pressing the power button located on the front of the console.
Point the Wii remote control at the "Wii" button located in the bottom left-hand corner of the Wii Channel Menu.
Press the "A" button on the Wii remote control while the "Wii" button is highlighted. This will give you access to the Wii System Menu.
Point the Wii remote control at the system setting you would like to change, and then press "A" to access the system setting of your choice.