The directory target where you must drop or create the keys.txt document depends entirely on the operating system and distribution style of the emulator. Windows (Standard Setup)
Install custom firmware (like Tiramisu or Aroma) on your physical Wii U console.
Some content on the Wii U, like certain system software and updates, requires secure access. The keys help facilitate this secure access within the emulator.
Open your main (where Cemu.exe is located). cemu emulator keys.txt
: Open NandDumper on your Wii U and dump the OTP.bin file to your SD card.
Only required for encrypted formats. If you use decrypted formats like .wua or "Loadiine" (folders with code, content, and meta), you don’t need a keys.txt at all. Where to Put It:
The RPX executable file format also doesn't require keys, though you may still need the common key depending on your setup. The directory target where you must drop or create the keys
The keys.txt file is located in the of your Cemu installation (the same folder where Cemu.exe is located). If it does not exist, you can create a new text document and name it exactly keys.txt . How to Format the Keys
What your game files are currently in (.wud, .wux, or folder structure)? Which version of Cemu you are currently running?
Note: If you are using .rpx files (commonly found in "Loadiine" or "extracted" formats), you usually do not need a keys.txt file, as these are already decrypted. How to Properly Create a keys.txt File Creating a keys.txt file is straightforward. Open (or any text editor) on your computer. Paste the unique 32-character key for your specific game. Save the file as keys.txt in your Cemu folder. File Structure Example: The keys help facilitate this secure access within
Unique 32-character hexadecimal strings assigned to specific software titles, regions, and retail revisions. File Format and Syntax
The keys.txt file is a plain text configuration file that Cemu uses to decrypt Wii U game files.
: Necessary for the highest quality "full" disc dumps (WUD/WUX).