Windows 10 Language Packs adding with DISM
Answers (1)
dism /Get-WimInfo/WimFile:C:\yourfolderwind10\sources\install.esd
check your sourceindex number (this is your windows 10 product) - change it in link below
dism /export-image/SourceImageFile:C:\yourfolderwind10\sources\install.esd /SourceIndex:1 /DestinationImageFile:C:\yourfolderwind10\sources\install.wim /Compress:max /CheckIntegrity
use
Dism/Mount-Image /ImageFile:C:\yourfolderwind10\sources\install.wim /Index:1 /MountDir:"C:\anewfoldertocreate\windows"
add your lip
Dism/Image:C:\anewfoldertocreate\windows /Add-Package /PackagePath:C:\whereisyourlipfolder\lp_56bf1ca2fd8d2ab6bfe207c740962cc70811065b-FR-FR.cab
then commit the changes
Dism/Unmount-Image /MountDir:C:\mount\windows /Commit
push your folder to your SDA