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

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.

Microsoft has released out-of-band (OOB) updates for some .NET Framework and .NET versions to address XPS display issues triggered by December 2022 cumulative security updates.