You must have administrator privileges to install language packs or set the system default locale.
Microsoft Windows XP provides built-in support for many double-byte languages. Enabling this support can be done at the time of install or after setup through the Regional and Language Options dialog box. If you enable language support after setup, you may need files from the Microsoft Windows XP installation CD. Configurations will vary depending on your needs and how your system has been configured previously. The following instructions are intended only to be general information to get you started: