https://www.bleepingcomputer.com/news/microsoft/microsoft-force-installs-windows-10-update-to-remove-flash-player/

Microsoft is force installing a Windows 10 update that removes the embedded 32-bit version of Adobe Flash Player from the operating system.

In October, we reported that Microsoft had released the KB4577586 optional update to remove the embedded 32-bit Flash Player from Windows and prevent it from being installed again.