If Windows Update fails or you are offline, you can use the DISM tool with a Windows 11 ISO or installation media. How to install .NET Framework 3.5 in Windows 11
Windows Installation Media: If you have a Windows 11 ISO or USB drive, you can install it offline using the Command Prompt (DISM). Installing via Command Prompt (Offline Method) net framework 3.5 windows 11 64 bit download
Drop a comment below (or check Microsoft’s official documentation for advanced DISM troubleshooting). If Windows Update fails or you are offline,
Installing on Windows 11 (64-bit) is a common requirement for running older software and games. Unlike modern versions, it is usually included as an optional system component rather than a standalone download. Method 1: Using Windows Features (Recommended) Installing on Windows 11 (64-bit) is a common
Microsoft Official Download Center: Search for ".NET Framework 3.5 Service Pack 1." This installer is a "bootstrapper" that will fetch the 64-bit components necessary for Windows 11.
Run the Windows Update Troubleshooter in Settings > System > Troubleshoot.