Installing Japanese Fonts
Windows XP
1. Open the Control Panel.
2. Click Date, Time, Language, and Regional Options and then Regional and Language Options (if the Control Panel is in in Classic View, just click Regional and Language Options).
3. Click the Languages tab.
4. Check the Install East Asian Languages box and then click Apply .
5. Click the Details button.
6. Click Add.
7. In the Add Input Language dialog box, select Japanese
8. In the same dialog box, select Microsoft IME Standard 2002 ver. 8.1 and click OK.
9. You should now have Japanese under Installed Services.
10. Click OK.
Windows Vista
Japanese fonts are installed by default.
1. Open the Control Panel.
2. Click Clock, Language and Region (or Regional and Language Options if your Control Panel is in Classic View and skip to step 4).
3. Click Change keyboards or other input methods
4. Under the Keyboards and Languages tab, click Change keyboards.
5. Click Add.
6. Expand the Japanese entry and check both Japanese and Microsoft IME and then OK.
7. You should now have Japanese under Installed Services.
8. Click OK.
Typing in Japanese
(I will add more on typing in Japanese later. Also, if someone wants to post something on Japanese fonts in Ubuntu, that would be very much appreciated, since there tend to be so many Linux users here.)