To install .NET Framework 3.5 SP1 on Windows 11:
Many classic applications and older Windows games specifically require the version 3.5 runtime to execute core functions. microsoft .net framework 3.5 sp1 windows 11
A mounted Windows 11 ISO or a USB drive containing Windows 11 setup files. Note the drive letter (e.g., D: ). To install
If you are on a newer build, the framework is no longer listed in "Windows Features". Microsoft Learn Install .NET Framework 3.5 on Windows 10 - Microsoft Learn If you are on a newer build, the
The .NET Framework 3.5 SP1 is not installed by default on Windows 11. However, Microsoft provides a way to enable it through the "Turn Windows features on or off" dialog box.
. NET Framework 3.5 Moves to Standalone Deployment in new versions of Windows. ... The deployment model of . NET Framework 3.5 for... Microsoft Dev Blogs .NET Framework 3.5 on Windows 11 FAQ - Microsoft Learn In this article. ... This article answers frequently asked questions about . NET Framework 3.5 on Windows 11. For more information... Microsoft Learn Microsoft is removing NET 3.5 Support from new Windows 11 builds, ... Feb 11, 2026 —