@leonarda09 Hi there Did you read the below Microslft Official Site? https://support.microsoft.com/en-us/windows/microsoft-japanese-ime-da40471d-6b91-4042-ae8b-713a96476... If you live and buy the computer (& the others) in Japan, you can change to Japanese characters hitting the "半角/全角" key. If the problem still persists, please provide detailed information about your situation, including where you live and the manufacturer of the keyboard you are using. I think you'll get a little more help that way. Hope this help.