Pls.help to change everything on my Macbook to Japanese.How ?

[PinkSakura]

I would like to ask for assistance about my other computer which is Macbook. How do I change everything to Japanese ? My husband is Japanese and he doesn't understand English so he needs everything on his Macbook to be Japanese. Everything is in English right now, how do I change all to Japanese ?

Many thanks <3

 

[spinnerlys]

If Japanese is installed (standard installation of Mac OS X includes Japanese), go to System Preferences > Language & Text / International > Language and drag Japanese to the top. Then log out and back in. Voilà.