Check your syntax. This error usually means a typo exists in the command string or spaces are missing before the forward slashes.
There are several scenarios where offline language pack installation becomes necessary:
This guide dives deep into what "Extra" means, why offline installation is superior, and how to execute a flawless manual language pack installation using DISM (Deployment Imaging Servicing and Management) and LPKSettup. Microsoft Windows 10 Language Pack Offline Install -Extra
dism /online /add-package /packagepath:"D:\LanguageFeatures\Microsoft-Windows-LanguageFeatures-TextToSpeech-en-US-Package.cab" Use code with caution. Troubleshooting Offline Installation
delivered via the Microsoft Store, offline installation has become more complex but remains "rock solid" when done correctly. Microsoft Support Key Performance Insights Reliability vs. Complexity: Check your syntax
Ensure your Windows 10 build matches the language pack build exactly. You cannot install a version 22H2 language pack on a version 21H2 operating system. If you want to customize this process further, tell me: What Windows 10 version (build number) are you targeting?
Inside the ISO root, LPKSettup.exe offers a simpler, albeit less granular, silent install method: Complexity: Ensure your Windows 10 build matches the
Select the newly installed language from the dropdown menu. Sign out of Windows and log back in to apply the changes. Automated Activation via PowerShell
Error: 0x80070002 (The system cannot find the file specified)
First, download the language pack files ( .cab files) for the language you want to install. You can download these files from Microsoft's official website or other reliable sources. Make sure to download the correct files for your Windows 10 architecture (32-bit or 64-bit).