How to enable the Japanese keyboard on Windows, Ubuntu, Mac and more
Jump to your platform by clicking on one of the links (other platforms are coming soon):
Windows 10
Ubuntu 16.04 LTS
Ubuntu Gnome 16.04 LTS (Ubuntu Gnome 17.04)
OS X Sierra
Windows 10
Step 1
First you have to open your Settings.
Step 2
Open the Text & language menu.
Step 3
Click on the Region & language category.
Step 4
Now select Add a language by pressing on the + sign.
Step 5
Then, a view opens with all the supported languages. Here you have to scroll to the right and select 日本語 Japanese entry.
Step 6
Windows will notify that it'll install the necessary packages. You'll know when it's finished when it says Language pack available on the second line.
Step 7
Now you can select the Japanese keyboard in the task bar in the bottom right corner. Click on your current language (here ENG) and select Japanese Microsoft IME.
Step 8
There should appear an A character next to language selection menu.
Step 9
Click it exactly once and it should switch the hiragana character あ.