Run the following command to add the package: Dism /Online /Add-Package /PackagePath:"C:\Path\To\your_language_pack.cab"
Organizations can download the "Language Pack ISO" or "Features on Demand (FOD) ISO" directly from Microsoft VLSC . Microsoft Windows 10 Language Pack Offline Install -Extra
It does mean a special Microsoft product – just a non-default set of languages installed offline. Run the following command to add the package:
Under , select your newly installed language from the dropdown menu. 1.2.3 Microsoft Windows 10 Language Pack Offline Install -Extra