This is the standard "offline" method used by IT professionals. It utilizes the Windows Component Store ( WinSxS ) found within the Windows 10 installation media (ISO or USB). This method is preferred because it installs the exact version of .NET 3.5 designed for your specific version of Windows 10, ensuring maximum compatibility.
To install on a Windows 10 64-bit system without an active internet connection, you must use a local source such as Windows 10 installation media (ISO or USB). This process uses the Deployment Image Servicing and Management (DISM) tool to enable the feature. Offline Installation Steps Install .NET Framework 3.5 on Windows 10 - Microsoft Learn This is the standard "offline" method used by
If you try to install this component on a machine without an active internet connection, you will quickly realize that the standard online installer fails. This comprehensive guide provides step-by-step instructions to download and install the safely and efficiently. Why Do You Need an Offline Installer? To install on a Windows 10 64-bit system