Will change Windows' display language to Japanese today.

Created by Anubhav on 2012-01-02; known on 2012-01-03; judged wrong by Anubhav on 2012-01-02.

• Anubhav estimated 80% on 2012-01-02
• Anubhav estimated 40% and said “‘Windows update encountered an unknown error.’” on 2012-01-02
• Anubhav   judged this prediction wrong on 2012-01-02.