On an machine running Windows 8.1 or Server 2012 R2:
Once you have downloaded the .cab files or the ISO, use these methods to install them without an internet connection: : Press Win + R , type lpksetup , and hit Enter. windows server 2012 r2 language pack offline download
| Error Code | Meaning | Offline Fix | | :--- | :--- | :--- | | | CBS_E_SOURCE_MISSING—The server lacks the required source files to accept the LP. | Run DISM /Online /Cleanup-Image /RestoreHealth (requires a side-by-side source folder from the original ISO). | | 0x800f081f | The CAB is corrupted or for the wrong architecture (x86 vs x64). Server 2012 R2 is x64 only. | Re-download the CAB verifying checksum. | | Language not showing | The language pack installed but the user profile didn't update. | Run Set-WinUILanguageOverride again and force a reboot. | On an machine running Windows 8