Download .net Framework 3.5 Offline Installer For Windows 10 11 [verified] Jun 2026

While modern Windows versions prioritize the web-based installation, having the (or knowing how to use the DISM command with local source files) is essential for IT professionals and users with unstable connections.

Although labeled as a standalone installer, the standard executable downloaded directly from Microsoft's public site often still attempts to connect to Windows Update to fetch specific language packs or payload files during setup on Windows 10 and 11. If your machine is completely disconnected from the internet or behind a strict corporate proxy, this installation may fail. To achieve a 100% true offline installation, proceed to Method 2 or Method 3. To achieve a 100% true offline installation, proceed

While Microsoft has moved on to .NET 6, 7, and 8 (and now .NET 9), remains the backbone for millions of legacy applications. The problem? Windows 10 and 11 do not include it by default. Worse, trying to install it via the standard "Windows Features" dialog forces your PC to download files from Windows Update—which often fails due to network policies, slow servers, or corporate firewalls. Windows 10 and 11 do not include it by default

Microsoft provides the "full redistributable package" for older systems. However, and may still attempt to reach out to Windows Update for some components. This method is less guaranteed to work than the DISM method with installation media. a strict corporate Group Policy

You are likely encountering the dreaded prompt: “This application requires .NET Framework 3.5.”

The installation was blocked by a conflicting background process, a strict corporate Group Policy, or a configuration error in the Windows Update database.