Nintendo constantly aims to improve its services and the functionality of its consoles in order to provide customers with the best possible user experience. As a part of these efforts, we are making system software updates for Wii U available through the Internet, and also pre-installing them on selected Wii U discs.
The length of time it takes to perform a system update varies depending on the speed of the Internet connection used. Please be patient.
Performing a system update may take an extended amount of time (for some users it could take an hour or more to download and install). Do not power off your console or remove the Wii U AC Adapter during this time.