The Wii U is a fascinating console. While its native library has gems like Breath of the Wild and Super Mario 3D World, its true secret weapon is the vWii (Virtual Wii). This sandboxed environment runs the entire Wii operating system natively, allowing you to play thousands of Wii and GameCube games with perfect accuracy.
A WAD (short for "Wii WAD" — possibly standing for "Wii Archive Data") is an encrypted container. It typically contains: vwii wad
If you install a WAD with a corrupted banner (the animated channel icon that appears on the menu), the vWii may freeze upon booting the System Menu. Because the vWii menu loads automatically when entering Wii Mode, you may be locked out of the vWii entirely. The Ultimate Guide to vWii WADs: Installation, Risks,