Desktop window manager high memory usage

New Contributor
I am on Windows 10 and Desktop window manager is making high use of memory. How I can control it?

I am on version 20h2 if that matters. Pls help
9 Replies
best response confirmed by RameshV1555 (New Contributor)

Hello @RameshV1555,

Try this video fix and see if it helps you:

Hope this helps!


*This reply was updated to make sure the information is still valid.

Try run the Windows Update and download and install all updates.

Make sure update your graphic card driver too.

You may open start and search for feedback and open the Feedback Hub app and report this issue.

Thanks Reza!

@RameshV1555  Editing the registry as shown in the video is unnecessary. In task manager>Processes tab, right click the 'Desktop Window Manager' entry and select 'Go to details'.


This will take you to the 'Details' tab of Task Manager, showing a detailed view of the running 'DWM.exe' process. There may be one or more instances of DWM.exe running, and if so, right click on the process showing the highest memory usage, and select 'End task'.


Your screen will turn black (with the exception of the mouse cursor) as DWM.exe restarts for a moment, but will result in returning to the screen as you left it and clearing the memory without needing to reboot your system.


Again, this is NOT a permanent solution, but a quick fix until Microsoft and Intel can address what is causing the memory hole issue.

When I tried Ramesh's solution, I found that the registry key he suggested deleting was already absent but I was still experiencing the high memory usage issue. However, terminating the offending process, as Xternai suggests at least provides a work around.
thanks so much for this
I can't believe all the genious's out there. The way to fiz Memory Overuse is to TURN OFF FAST START. End of story. YOU HEAR ME MICROSOFT???? Sheeeeesh.