Mount a Windows WIM/FFU image and add language packs using DISM before deployment:
dism /Mount-Image /ImageFile:install.wim /Index:1 /MountDir:C:\mount
dism /Image:C:\mount /Add-Package /PackagePath:es-es.cab
dism /Unmount-Image /MountDir:C:\mount /Commit
Inside the ISO root, LPKSettup.exe offers a simpler, albeit less granular, silent install method: Microsoft Windows 10 Language Pack Offline Install -Extra
LPKSettup.exe /p es-ES /s /noreboot
| Term | Meaning | |------|---------| | Extra | Additional language packs beyond the default single language (e.g., English base + Spanish, French, German). | | Extra | Optional LIPs (Language Interface Packs) – partial localization for smaller languages. | | Extra | Language features like handwriting, speech, or OCR for a language. | Mount a Windows WIM/FFU image and add language
It does not mean a special Microsoft product – just a non-default set of languages installed offline. Inside the ISO root, LPKSettup