The Maya user interface automatically appears in Japanese when launched within a Japanese operating system environment. If you wish to run Maya with a Japanese UI on a system that is enabled to run in multiple languages, you must set the operating system preferences for that operating system. The steps for doing this differ depending on the operating system:
To run Maya in Japanese on a qualified Japanese Windows operating system
The Windows operating system will indicate it needs to be restarted for the changes to take effect.
To run Maya in Japanese on a Mac OS X operating system
The next time you launch Maya, the user interface will appear as Japanese.