Windows 10 Build 19041 (Version 2004) allows users to download and install language packs to change the display language for menus, dialog boxes, and supported applications. Official Installation Methods

Microsoft publishes language packs as standalone .cab files for Volume Licensing customers and enterprises.

Why would an administrator need to manually download the Build 19041 language pack? Consider a scenario where a corporate network restricts internet access to workstations. A new employee in the Tokyo office requires a Japanese UI, but the deployment image was English-only. The IT team would download the Microsoft-Windows-Client-LanguagePack-Package~31bf3856ad364e35~amd64~ja-JP~10.0.19041.1.cab file from the Update Catalog, transfer it via USB, and install it using: dism /online /Add-Package /PackagePath:path\to\lp.cab .

If you're looking for direct download links for Windows 10 Build 19041 language packs, here are a few resources:

When downloading for Build 19041, you must distinguish between: