Please run setup.exe either:

a)      From ja-JP folder if you prefer Japanese UI.

b)      From en-US if you prefer English UI. We provide only two choices; so if you are not familiar with Japanese, en-US is the only option for you.

Note: The client bits you get installed are identical regardless of which setup UI you chose. In other words, all the difference between two folders (ja-JP or en-US) is setup UI language, and the choice does no effect for installed runtime bits.