Force selected system UI language to overwrite the user UI language
This policy setting controls which UI language is used for computers with more than one UI language installed.
If you enable this policy setting, the UI language of Windows menus and dialogs for systems with more than one language is restricted to a specified language.
If the specified language is not installed on the target computer or you disable this policy setting, the language selection defaults to the language selected by the
If you disable or do not configure this policy setting, there is no restriction of a specific language used for the Windows menus and dialogs.
At least Windows Vista
Not Configured - No registry values are specified.
Disabled - Any values that would be created by the policy in the registry are deleted.
Enabled - Adding, modifying or delete values in the registry.
Force selected system UI language to overwrite the user UI language can be found in the Group Policy.
Please navigate to Computer Configuration - Policies - Administrative Templates - Control Panel - Regional and Language Options folder.