Policy

Restricts the UI language Windows uses for all logged users

This policy setting restricts the Windows UI language for all users. This is a policy setting 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 will follow the language specified by the administrator as the system UI languages. The UI language selected by the user will be ignored if it is different than any of the system UI languages. If you disable or do not configure this policy setting, the user can specify which UI language is used.

Policy
PackMicrosoft Windows
CategoryControl Panel / Regional and Language Options
Policy ID956ac47fd04a
Internal nameLockMachineUILanguage

Registry

Copy registry mappings

HKLM\Software\Policies\Microsoft\MUI\Settings\PreferredUILanguages

Policy notes

This policy setting restricts the Windows UI language for all users. This is a policy setting 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 will follow the language specified by the administrator as the system UI languages. The UI language selected by the user will be ignored if it is different than any of the system UI languages. If you disable or do not configure this policy setting, the user can specify which UI language is used.

Related policies

Allow users to enable online speech recognition servicesBlock clean-up of unused language packsForce selected system UI language to overwrite the user UI languageHide Regional and Language Options administrative optionsHide the geographic location optionHide the select language group optionsHide user locale selection and customization options