: For the most recent versions of Windows 11, .NET 3.5 has moved to a standalone deployment model. Users on these builds should visit the specific Windows 11 standalone installer page for the correct version. Installing Offline via Windows Media (DISM)
This is the most reliable way to install the framework without an internet connection. Microsoft Learn Obtain Windows Media : For the most recent versions of Windows 11,
The source (ISO) is corrupted or the path is wrong. Fix: Remount the ISO. Ensure the CAB file exists in \sources\sxs . Try copying the entire sxs folder to your desktop ( C:\sxs ) and change the source path to /Source:C:\sxs . Microsoft Learn Obtain Windows Media The source (ISO)
Once the ISO is downloaded:
If you simply double-click the .exe , it may still try to download files from Windows Update. To force a , use the built-in Deployment Image Servicing and Management (DISM) tool instead. Try copying the entire sxs folder to your