dism /online /add-package /packagepath:<path to language pack file>.cab Replace <path to language pack file> with the actual path to the language pack file ( .cab file). For example:
Press the Windows key + X and select Command Prompt (Admin) to open the Command Prompt as an administrator. Microsoft Windows 10 Language Pack Offline Install -Extra
Use the Deployment Image Servicing and Management (DISM) tool to install the language pack. The command to install a language pack is: dism /online /add-package /packagepath:<
Download the language pack files ( .cab files) for the extra language you want to add. path to language pack file>