Updating wii firmware without internet
Out of the box you could play hundreds of virtual console games, which are exact replicas of older titles for systems like NES, Sega Genesis, Commodore 64, and more.
Using the Wii Options menu, it is possible to upgrade your Wii software to the latest version released from Nintendo for the gaming console.
You will need to have an active internet connection to download the update first, so make sure that the Wii is connected to your home network.
Use Methods 2 or 3 below if you don't own one of these games from your own region.
You can choose to block updates so that your system can't be accidentally upgraded in case a new update comes out.
Either of these firmwares is safe, so feel free to choose either one.