Step 1: Set up the Wii U console, and start the Wii Menu.

Step 2: Start the Wii System Transfer application, then follow the on-screen instructions.

Step 3: Insert an SD Card or SDHC Card into the SD Card slot of the Wii U console when prompted.

Step 4: When prompted, remove the SD Card and leave the Wii U console in its current state. Do not turn off the power or return to the Wii Menu.

Step 5: Connect the Wii console to the TV.

Step 6: On Wii, start the Wii Shop Channel and download the Wii U Transfer Tool from the Channels section.

Step 7: Start the Wii U Transfer Tool and follow the on-screen instructions.

Step 8: After the process, the application will inform you which data has been moved. Remove the SD Card from the Wii when the application asks you to do so.

Step 9: Insert the SD Card into the Wii U console, and follow the on-screen instructions to complete the system transfer.

Step 10: Once the process is complete, you can enjoy your content on your new Wii U console.

The length of time it takes to transfer content from a Wii console to a Wii U console varies depending on the volume of data being moved across. In some cases the transfer process can take up to an hour and a half. Please do not turn off the power to the Wii U console during the transfer process, or remove the SD Card unless instructed to do so.