@Shukran
Hi,
Starting with Windows 10 version 1809, FOD (Features on Demand) and language packs can only be installed from Windows Update.
Change the Specify settings for optional component installation and component repair policy to enable downloading FOD and language packs from Windows Update.
This setting is located in
Computer Configuration > Administrative Templates >System > Specify settings for optional component installation and component repair
Set it to Enabled
Alternate source file path: <BLANK>
Never attempt to download payload from Windows Update: Uncheck
Download repair content and optional features directly from Windows Update instead of Windows Server Update Services (WSUS): Check
Hope above information can help you.
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