1. Overview Windows 8.1, like its predecessors, supports multiple display languages. A language pack changes the UI text (menus, dialog boxes, help files) from the default language (e.g., English) to a selected one (e.g., Spanish, German, Arabic). Unlike later versions of Windows (10/11) that deeply integrate with the Microsoft Store for language features, Windows 8.1 uses a Control Panel -based mechanism.
If you need multilingual support, migrate to a supported Windows version where language packs are actively maintained and delivered through the Settings app.