Before you begin the installation process, ensure you meet the following requirements:

There is, however, a critical limitation for AutoCAD 2018. Autodesk has stated that for Japanese language packs, versions released before 2018 are no longer available for download due to business reasons. If you wish to use the Japanese language with versions prior to 2018, you must purchase the complete Japanese-language version of the software. This highlights the importance of understanding the language availability for your specific version.