Enable Chinese in Windows 10

Add Preferred Languages

• Go to Settings => Time & Language

• Go to Language => Preferred languages

• Click on Add a language to add Chinese

Add Keyboard (Input Method)

After language added in previous step

• Go to Language options => Keyboards

• Select Add a keyboard, then select input method to be added

Change locale (Default non-Unicode language)

After language added in first step

• Click on Administrative language settings, then Region => Administrative window appears

• Click on Change system locale..., Region Settings window appears

• Select Chinese in Current system locale

• Click on OK button