How to switch between full and half-width input for Windows 10 Japanese IME?

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Not sure if this will work since I am not on Windows 10, but clicking on the icon in the taskbar that indicates the mode of typing (katakana, hiragana, romaji etc.) I can select halfwidth from the menu that appears after that.

My options are:

  • Hiragana
  • full width katakana
  • full width romaji
  • half width katakana
  • half width romaji

Hopefully this helps


I can’t check right now but IIRC it was Shift-CapsLock. You can also just type the word in any kana and press F7 to make it full width katakana or F8 for half width.

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