I speak three languages, English, French and Creole. The latter is our mother tongue. Since I'm active on the Windows Phone forums, both English and French, i find it very useful to be able to switch between the two languages. However, it would be great to be able to do so without having to reboot the phone like it's the case on another mobile operating system. Most Windows Phone 7 supports at least two languages and they vary depending on your location. So, how do you go about doing the switch? Follow the steps below:
From the main screen, flick to the left to access the application list.
Scroll down to Settings. Tap to open.
Tap Region & Language.
Tap the "Display language" field to select your preferred language. When done, you are taken back to the Region & Language screen.
Notice just above the "Display language", there is a message saying "Tap here to accept changes and restart your phone." Tap that message to restart your phone into the new language.
To revert back to your initial language, follow the same steps.
Now if you have been through all these steps and finally decided not to proceed with the switch, do not tap to restart the phone, instead press the Back button.