You can go
here (choos links in the table) and
here. But if you have 'Asian language support' option checked (in Regional and language Options), you should have MS Mincho, MS PMincho, MS Gothic, MS PGothic and other fonts with Japanese script installed.
But note that SJIS/JIS conversion will be applied to every other text you type, so don't try to speak other languages while in 'Japanese mode'.