Installing a System Menu WAD is a high-risk procedure. To avoid "bricking" your Wii, you must ensure the following:
: Always create a fresh NAND backup using BootMii before making system changes. Region Check wii system menu 4.3 wad download
: Navigate to System > 0000000100000002 - System Menu . Installing a System Menu WAD is a high-risk procedure
: Create a folder named wad on the root of your SD card and move the downloaded System Menu and IOS WADs into it. wii system menu 4.3 wad download
In the Wii ecosystem, a is a package file. Think of it as a .ZIP or .EXE file for the Wii. It contains data that can be installed to the Wii’s internal NAND flash memory.