The .NET Framework 3.5 offline installer for Windows 11 64-bit should now be successfully installed. If you're still encountering problems, consider reaching out to Microsoft Support or a professional IT expert.
Requires downloading from third-party sites; always scan these files for malware before running.
Wait for the progress bar to reach 100%. You should see the message: "The operation completed successfully." net framework 3.5 offline installer windows 11 64 bit
– Microsoft provides an offline installer for .NET Framework 3.5, but it’s important to understand:
This is the "official" offline method. It uses the original source files found on a Windows 11 ISO or USB drive. Prerequisites A Windows 11 ISO file or bootable USB. Administrative privileges. Wait for the progress bar to reach 100%
This is the most reliable method to force Windows to install the feature using local files.
For an online reference image that can access Windows Update * Open a command prompt with administrator user rights (Run as Admini... Microsoft Learn Installing Microsoft .NET Framework 3.5 Features without ... Procedure * Insert the Windows 10 installation media. Ignore the Autorun prompt that may appear. * Click Windows Start. * To open ... Johnson Controls Install NET Framework 3.5 on Windows 11 Without Errors Feb 22, 2026 — Prerequisites A Windows 11 ISO file or bootable USB
Even after downloading the offline installer, you still need to enable .NET Framework 3.5 through the Windows Features interface.