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

Anonymous
2020-09-06T11:24:54+00:00

The infamous dwm.exe hogging lots of memory. FYI this is not a specific program issue. It just happens with any programs, activities randomly.

I'm getting really tired of killing dwm.exe every so often so that it will release the occupied memory. When is this going to be fixed? Is this ever going to be fixed even?

Windows for home | Windows 10 | Performance and system failures

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  1. Anonymous
    2021-04-13T17:21:32+00:00

    Yes I've just seen the post and provided my dump files to the Intel moderator to forward to the debugging team for a closer look at it.

    It's highly disappointing that no one official in Microsoft forums is actually responding, or at least looking at this matter.

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  2. Anonymous
    2021-04-09T06:49:45+00:00

    After several days of just using hibernation at the end of day, dwm.exe is suddenly at 3.6GB of private data :D  Restarting now.. 

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  3. Anonymous
    2021-04-07T08:14:55+00:00

    DWM.exe runs high (150MB) then start to jump up when I open Firefox browser and this only happen when I start up my PC from shutting it down then it run fine when I restart my PC like it's run at 15-30MB....I had version 27.20.100.9127 of the Intel UHD Graphics 630

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  4. Anonymous
    2021-03-31T13:38:41+00:00

    Bad news sadly: My laptop was leaking memory again of dwm.exe process while I just had  2 video streams open and the memory was leaking around 2mb/s linear growing. I had woke up the laptop from hibernate that day, which is the first time I had used hibernate since the change of the gpu schedule option. So the issue sadly is not connected with the gpu schedule option it seems, but rather using hibernatemaybe. I had a auto hibernate timer of around 10h set, so when I would wake up the laptop quicker, it wouldn't trigger hibernate. Someone maybe can confirm, who had the issue also used hibernate in between? Thats also maybe the reason why Intel couldn't reproduce it, because they never thought of using hibernate for the testing.

    also if you are using "fast startup" that basically means it will use a "mini hibernate" (mini hibernate of kernel + drivers + system related stuff) each restart of windows, so if hibernate is indeed a root cause of this issue, it might trigger it too with "fast startup" activated.

    you can deactivate hibernate, which then automatically turns off "fast startup" by opening a cmd.exe as administrator and type in: powercfg -h off

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  5. Anonymous
    2021-03-29T13:52:05+00:00

    Strangely, I dont have this option..

    Like I said, the option is just there if the driver supports WDDM 2.4. So if you dont have a newer or latest Intel driver with device which supports it, the option is not there.

    Still to memory leak anymore for me! The leak is totally gone since I deactivated Hardware-accelerated GPU scheduling.

    You can also disable it via regedit:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers

    dword32 "HwSchMode"

    1 = disabled

    2 = enabled

    Option wont be there, again, if you dont use a WDDM 2.4 driver and at least 20H1.

    Download latest from https://downloadcenter.intel.com/download/30266/Intel-Graphics-Windows-10-DCH-Drivers and then see if the option is there, and toggle it on and OFF again reboot.

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