Things You'll Need
Instructions
Access the Wii channel menu.
Locate the Wii button in the lower left corner. Move the cursor over the button and press A to select.
Click on "Data Management". This is the icon on the left.
Select the "channels" icon on the right.
Click the game or channel you would like to delete.
Choose "erase" on the right, and select yes if you would like to continue. Once you have selected yes to erase the game or channel, it will be deleted from the Wii console.