Desktop Windows Manager (DWM) memory leakage in Windows 10 (Version 2004).

Hi, saw this post on the search for myself. Had the same problem. 

In case you didn't find a fix for yourself. I want to share my solution:

In my case, I updated Windows 10 to 2004 and by doing so had a driver problem with my Intel HD Graphics 630, which lead to an install of the latest version. I did that all for the new GPU scheduling feature and thought that was the problem.

After many researches on the web I found a post on Reddit, where someone commented the solution that worked for me. The Intel drivers caused a memory leak for dwm.exe. I had to uninstall it and install an older version of the drivers from early 2020.

Here to the comment on Reddit which helped me.

Hey guys, thanks for your inputs on this.

Unfortunately, reverting back to an older driver didn't fix my issue. So I'm just updating every once a new intel driver is available, hoping that it might fix it.

My machine has a Nividia Optimus, meaning the iGPU is always in charge of the display and dGPU does all the heavy lifting and simply adds the calculated results to the iGPU's buffer when necessary. So I'm curious if a desktop system with dGPU also experience this issue.

I've made a batch file that kills DMW.exe upon booting up the system, and interestingly I did observe a difference. When DMW.exe is newly started, sometimes I see no memory leakage at all even after using my machine for 3 to 4 hours. When I DO NOT kill the DMW.exe, there is 100% guarantee that there would be memory leakage within the first 1 hour. I've tried to look into the memory address so that I could pinpoint the trigger program / service, but to no avail.

Anyway, I've found a temporary solution. It's still a hassle but doesn't bother me as much. Not sure which party is to blame, MS or Intel but hopefully it'll get fixed soon.

I am having the same issue on an HP ZBook 14u G5. UHD620 + AMD Radeon Pro WX 3100. Tried all "internet" solutions and still using 2.5GB.

I hope someone can provide a solution.

Same problem for me.
I have a lenovo p53 with 32Gb RAM installed, windows 10 (version 20H2) with all the updates.
Desktop windows manager (in italian "gestione finestre desktop") eats up to 10 GB and more of ram slowing down the system crating problems with the other programs).
video card is Intel (integrated) + nvidia quadro T2000
I attach the situation right now

Micorsoft, Intel, please help us

Same problem here. ;/

I reported the problem here:

https://community.intel.com/t5/Graphics/BUG-dwm-exe-uses-memory-leakage-with-Intel-HD-Graphics-630/td-p/1222297

many have it, but Intel is unable to reproduce it, so it's up to MS :(

Until then yyou can use these temporary "fixes":

- roll back driver to 26.20.100.7985 (that is my solution and disable automatic graphic driver updates)

- restart the comouter instead using fast startup through shut-down

- restart the dwm.exe in task-manager

Hello Cody here again!

I think we need to make new thread... Maybe it is exactly windows fault... 

I have occasionally different size huge dwm agan... up to 4 gb... 

Hi, saw this post on the search for myself. Had the same problem. 

In case you didn't find a fix for yourself. I want to share my solution:

In my case, I updated Windows 10 to 2004 and by doing so had a driver problem with my Intel HD Graphics 630, which lead to an install of the latest version. I did that all for the new GPU scheduling feature and thought that was the problem.

After many researches on the web I found a post on Reddit, where someone commented the solution that worked for me. The Intel drivers caused a memory leak for dwm.exe. I had to uninstall it and install an older version of the drivers from early 2020.

Here to the comment on Reddit which helped me.