Changing Language in Windows

  1.    If y you are a Windows 7 user, check if your version of operating system is Ultimate or Enterprise. If you do not have any, you will not be able to change your language.

  2.    Click on the “Start” button and select “Control Panel ”

  3.    Click on“Clock, Language, and Region,” then click on “Region and Language ”

  4.    Click on the tab labeled “Keyboards and Languages”

  5.    Navigate to the section labeled “Display language,” then click on the language you want displayed in Windows.

  6.    Click on “OK. ” Going forward, the Windows user interface on your computer will display in the language you selected

   Source : http://www.wikihow.com/Change-the-Language-on-Your-Computer