Nintendo originally encrypted all Wii U discs and digital downloads to prevent piracy and unauthorized copying. When you dump a legitimate copy of a game you own, the encryption remains. CEMU, as an emulator, needs the title key to decrypt the data on-the-fly during emulation.
The most reliable way is to dump them from your own Wii U console using homebrew tools. cemu wii u title keys
Cemu is a popular emulator for the Nintendo Wii U, allowing users to play Wii U games on their PC. One of the requirements for using Cemu is obtaining the title keys for the games you want to play. These keys are necessary for decrypting and running the game. Nintendo originally encrypted all Wii U discs and
The Wii U, Nintendo’s ill-fated but beloved eighth-generation console, may have been a commercial disappointment, but its library contains gems like Breath of the Wild , Super Mario 3D World , and Xenoblade Chronicles X . For PC gamers and preservationists, —the pioneering Wii U emulator—has unlocked these experiences at 4K resolution and beyond. The most reliable way is to dump them
: Users with a "homebrewed" Wii U console can use tools like Dumpling to export their own game files and the necessary keys directly from their system.