Windows 7 can let you set different display language settings for different user accounts. When you choose regional and language settings for your computer, such as your default input language or keyboard layout, you can apply those settings to special accounts in Windows called Reserved Accounts.
Reserved accounts include the default user account and the system accounts.
To do so, open the Control Panel > Clock, Language, and Region > Region and Language.
In the Region and Language dialog window, click on Administrative tab.

Under Welcome screen and new user accounts section, click on Copy settings button.
In the dialog box which opens, select and tick the check boxes for New user accounts.
Click OK.
If you want to change the display language in Windows 7:
Click the Keyboards and Languages tab.
Under Display language, choose a language from the list, and then click OK.
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