Changing the Language in a Multiple MUI Run-Time Image (Windows Embedded Standard 2009)
Deploy your image to your target device and allow First Boot Agent (FBA) to run. FBA runs in English only.
After FBA is completed, the system starts in the default language selected in the Regional and Language Options component.
To change the default language in a multiple MUI run-time image
In Control Panel, choose Regional and Language Options.
On the Regional Options tab, select the language to use for standards and formats, and choose the default geographic location.
On the Languages tab, choose the language to use in menus and dialog boxes.
You can change the default keyboard type by choosing Details in the Text Services and Input Languages section.
The Text Services and Input Languages dialog box appears. You can select the default input language, as well as the default keyboard.
On the Advanced tab, select the default language to use for non-Unicode applications.
Log off the system. When you log back in, the user interface language has changed.