Once you have your legal WAD file (or are exploring homebrew WADs—programs written by indie developers for the Wii), the installation process is simple.
: For legal homebrew WADs (like the Homebrew Channel), you can find them on official project pages like Wii Hacks Guide How to Install WADs in Dolphin dolphin emulator wad files download
Downloading copyrighted WAD files (like commercial games) from third-party sites is considered . To stay 100% legal, you should use the following official or self-sourced methods: Once you have your legal WAD file (or