To install Windows 3.1 on a Wii, one must: 1. Download and install Letterbomb and Homebrew Channel to enable running of unsigned code. 2. Copy the Windows 3.1 install files and disk contents to an SD card. 3. Use Dosbox within the Homebrew Browser to mount the SD card and run the Windows setup file to install it. 4. After installing, run Windows 3.1 from the Dosbox menu within the installed directory on the SD card.