Developer community skeptical following 'long silent stagnation' of the framework and accompanying SDK Microsoft lead ...

The problematic Windows 10 updates are KB4598301 and KB4598299, two updates with cumulative reliability improvements for .NET Framework 3.5 and 4.8 released in January and February, respectively.

Windows applications, including .NET applications that use Windows Forms or Windows Presentation Foundation (WPF), create their windows by calling the CreateWindowExA or CreateWindowExW functions.