To set your keyboard to different Language input - Windows Vista

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Bilingual Keyboard for Windows Vista (Input Language)

The bilingual keyboard uses the standard keyboard driver and requires no additional software. To add an additional input language to the operating system, complete the following:

  1. Click Start » select Control Panel
  2. Select Clock, Language, and Region » Change keyboards or other input methods

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3. Select Change Keyboards

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4. Click the Add button and select Chinese.

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5. Next, set the Chinese (PRC) language as your default keyboard input.

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6. Click on OK to save your settings.