Verify that the aes_keys.txt file is not empty or corrupted. Conclusion
Once this user folder exists, Citra will automatically prioritize it over the default AppData/Roaming directory, making the emulator fully portable. Troubleshooting
Backing up your saves, mods, and emulator settings becomes as simple as copying a single root folder. How to Configure Citra for Portable Mode citra aes keystxt portable
Right-click in an empty space, select , and name this new folder exactly user .
Decrypted games ( .3ds ) do not require an external key file. Only encrypted formats ( .cia or encrypted .3ds ) require the aes_keys.txt database. Verify that the aes_keys
Place your file directly inside the sysdata folder.
Inside the main Citra folder (where citra-qt.exe is located), right-click, create a new folder, and name it exactly user . How to Configure Citra for Portable Mode Right-click
When Citra detects the user folder in its root directory, it automatically switches to portable mode. It redirects all save paths, configuration files, and key registries to this specific folder instead of your main operating system drive. Positioning the aes_keys.txt File
To decrypt and play your legally dumped 3DS games, Citra requires a specific text file named aes_keys.txt . Setting this up in a portable environment requires a few specific steps to ensure the emulator knows exactly where to look for your decryption data. What are Citra AES Keys?
Unlocking Portability: How to Use Citra AES Keys for Your Portable Setup