Wii Menu 4.3

Unauthorized Modifications
Because unauthorized channels or firmware may impair game play or the Wii console, updating to Wii Menu version 4.3 will check for and automatically remove such unauthorized files. In addition, there are some behind the scenes enhancements that do not affect any prominently-used features or menus but will improve system performance.

If you are seeing “Error:004,” please click here.
Wii Error:004

The error code you received indicates the system is attempting to load unauthorized software. Unauthorized modifications to save data or program files may impair game play or the Wii console and should be removed.