Things You'll Need
Instructions
Turn on the computer and place the SD Card into the computer's SD reader. If you don't have an SD card reader you can purchase one online and plug it into the computer's USB port (See Resources).
Click "Start," "Computer" and "Manage." You will be taken to the external devices management page. Locate the SD Card reader on the screen and click it.
Locate the Wii games you have stored on the computer. Copy and paste them to the SD reader device icon. Wait for the transfer to complete.
Remove the SD card from the SD card reader and place it into the Wii SD card slot.
Launch the USB loader and select the game you wish to upload from the SD card. You have now transferred Wii games from your computer.