If Japanese was not in the drop-down list, please follow these instructions: Restart PC so that the update takes effect.
Click on Clock, Language, and Region, then on Regional and Language Options.( OPTION 3 ) How can I set Windows 7 to Japan/Japanese? On the Language window, click on the Options button to download and install the Japanese language pack.Find and click on Japanese in the list.Click on Add a Language on the Language window.
Click on Add a Language under Clock, Language, and Region.Press the Windows key, type ‘control panel’ and open the Control Panel.For Windows 8.1 and earlier versions of Windows 10:
