Yes. Microsoft fully supports .NET Framework 3.5 on Windows 11 for backward compatibility.
Yes. After enabling the feature, run Windows Update to install security updates for .NET Framework 3.5. net framework 3.5 download
If you have tried to run an older application or game on a modern Windows PC, you may have encountered a pop-up asking for .NET Framework 3.5 . Despite being released in 2007, this version is still required by thousands of legacy enterprise apps, utilities, and classic games. net framework 3.5 download
Use Disk Management to temporarily increase the System Reserved partition or use the DISM offline method (Method 2). Installation gets stuck at 65.8% Cause: Windows Update is slow or conflicting. net framework 3.5 download