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

I finally found the thread!

This is just taken moments ago, with DWM.exe inflating to a massive 17GB. I'm also running on a gaming laptop on Windows 10 20H2, as well as Intel UHD 620 and Nvidia RTX 2080 Super Max-Q.

We are aware that the Intel graphics driver 26.20.100.7985 is the last known best working set that had no such memory leak issue. This was highlighted to Intel support but they aren't able to replicate this problem.

And I second to most affected users here, any normal activity or usage after 3-4 hours would result in a bloated memory usage by DWM, killing the process wouldn't resolve either as it usually comes back after a while.

I also found some inconsistencies with Windows shutdown and startup, where if I did a full shutdown the bloating issue is partially resolved. However, this doesn't fully solve the problem as it usually picks up after a few boot cycles.

I'd like to implore Microsoft engineers to fully investigate this and urge to collaborate with Intel to find out the root cause of the issue.

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.

It is an intel problem, I saw this issue happening from the latest version. I didn't upgrade my nvidia driver tho.

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... 

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

Same problem here. ;/