If you are troubleshooting legacy software or installing an older application on a modern version of Windows, you have likely encountered a prompt to install .NET Framework 3.5.
. Windows will automatically download and install the required files. Microsoft Learn Are you having trouble with a specific error code 0x800f0906 ) while trying to install it? net framework 35 includes net 20 and 30 download link
Unlike newer versions like .NET 4.x—which typically replace their predecessors—the 3.5 version is a superset. When you install or enable .NET 3.5, you are effectively installing: Understanding
There are two ways to install .NET Framework 3.5, depending on your operating system. Open Control Panel → Programs → Turn Windows
Windows 11 (Version 26H1 and later): Modern versions of Windows 11 now require a specific standalone installer. Standalone .NET Framework 3.5 for Windows 11