If you’ve encountered an error saying “You must install or update .NET Desktop Runtime” when launching a Windows application, you likely need Microsoft Windows Desktop Runtime version 6.0.36 . This specific release is part of the .NET 6.0 framework — a critical component for running many modern desktop apps built with C#, WPF, or WinForms.

If you’re a developer, you need the , not the Desktop Runtime. For end users — the Desktop Runtime is exactly what you need. Last updated: October 2025 (based on current .NET release schedule). Always check for newer 6.0.x versions, as Microsoft may have released 6.0.37 or higher.