How do I fix .NET Framework 3.5 on Windows 11? The first thing you can do is to run the .NET Framework Repair Tool on Windows 11 computers in order to fix almost all the common installation errors.

If you see the 0x800F0922 .NET Framework installation error while updating or installing .NET Framework 3.5 or 4,8, use these working fixes.

The .Net Framework provides the necessary compile time and run-time foundation to build and run any language that conforms to the Common Language Specification (CLS). What is .NET Compact Framework? .