Dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess Use code with caution. Parameter Breakdown:
To install on Windows 10 (64-bit) without an internet connection, you must use the original Windows 10 installation media (ISO or USB) . Windows 10 does not provide a standard standalone executable installer for version 3.5 like it does for newer versions. Official Offline Installation Method (DISM)
These errors usually mean Windows cannot find the source files. Ensure that the path in your DISM command correctly points to the sources\sxs folder on your installation media. Group Policy Restrictions For large-scale deployments, use the same DISM command
Method 2: Offline Installer via Control Panel (Using SxS Folder)
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Open Command Prompt as Administrator.
For large-scale deployments, use the same DISM command inside a script or task sequence. For large-scale deployments
In corporate environments, system policies might block local feature installations.