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WUP Installer is a homebrew application designed to copy these NUS-formatted directories from the SD card to the Wii U’s internal storage (NAND) or an external USB hard drive formatted for the console. The utility functions by interfacing with the Wii U's iosu , acting as a mediator to trigger the installation routines normally reserved for system updates or eShop downloads. descargar juegos wii u wup installer link upd