The Desktop Windows Manager (DWM.EXE) is an official process running in a Windows operating system (OS). It is responsible to manage GUI visual effects and related components. It is there to enable use of hardware acceleration to render the graphical user interface of Windows.If it is causing high memory usage on your system, here’s how you can correct it.
KB5004945 is a new security update that has been released for any Windows version newer than v2004.
Users that have Windows 10 version 1909 will first get the KB5004946 patch, and then, the PrintNightmare patch will also be installed. If you are a Windows 7 user, this patch is also available for you, even though the operating system is out of support.
The whole situation is very serious because even computers with Windows 7 will be able to install this patch and this clearly indicates the gravity of the issue.