dwm.exe High memory

The DWM.exe service runs perfectly fine upon start-up and has an average memory usage of about 100-150MB. However, after using windows for few minutes, the DWM.exe skyrockets from 100-150MB to approximately around 1.5-2GB worth of active memory use.

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Thanks for reaching out! I'm an Independent Advisor and a Microsoft user like you. I will try my best to help you out.

What laptop model are you using? What is the version and build of your Windows? To check please click here:

https://support.microsoft.com/en-us/help/13443/...


Here are some steps that I have compiled for you to try:

Method 1: Please check the article below. This contains information on what may be causing the issue as well as troubleshooting steps that would be able to resolve your dwm.exe high memory usage.

https://appuals.com/fix-desktop-window-manager-...

Make sure to restart and check if dwm is working normally. Kindly proceed with the other methods if the issue still occurs.

Method 2: Run the SFC Scan

1. In the Search dialog box on Windows 10, type “cmd” and press the Enter key
2.Right-click on Command Prompt program from the search results
3. Click on “Run as Administrator” from the drop-down menu
4. Run the SFC Scan
5. Type the following command in the Command Prompt window

sfc /scannow

6. Press the Enter key to execute the program
7. It may take a few minutes to a half-hour for completing the SFC scan. After the process is finished, the SFC scan reveals corrupted files and informs you about the repairs.

8. Close the Command Prompt window and restart your computer to put the repairs into effect.

Method 3: Run DISM

1. Open the Command Prompt as Administrator.
2. In the command line, copy-paste these lines one by one and press Enter after each:
DISM /online /Cleanup-Image / ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth
3. Wait until the procedure ends (it might take up to 10 minutes).
4. Restart your PC.

Method 4: Use Performance Troubleshooter

1. Open the Command Prompt program by right-clicking on it and selecting “Run as Administrator”
2. Type the following command and press the Enter key

msdt.exe /id PerformanceDiagnostic

3. Let the command execute and finish
4. Restart your computer later, and check if the dwm.exe file is facing errors.

Method 5: Perform Windows Update
Select Start > Settings > Update & Security > Windows Update , and then select Check for updates. If updates are available, install them.

More info here on how to update Windows 10:
https://support.microsoft.com/en-us/help/402868...

Let me know if the suggestions above would help fix your issue. Stay safe!

_____________________________________________
Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

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I've same issue, so i turn windows theme to basic. And it's come back to normal. But still searching what cause the problem. Then i finally found that i used the high performace on power plan. Then I change it to balanced. And it works...everything back to normal. It's just an old laptop. That new to replace with the new one. 

Windows 7,

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I found what creates the problem, at least on my laptop.

I use Opera GX, when i view www.twitch.com an popout the video into a new form, dwm.exe starts taking memory.

This resulting into 16GB in an hour.

When i normaly watch twitch, its goes up, but not as much as with the popout video.

It gets even worse when i have a second monitor attached, for some reason. ??

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The same isue with Microsoft Surface Book 2 (with 16 Gb RAM, soldered so you can't increase the amount). Nothing from what is described here helps. One thing that actually does help is to kill the DWM.exe process from time to time and then it will get back to normal 150-200Mb. After working for a while kill it again. And again. And again. It is really weird to see how the Microsoft Windows 10 core service is eating the ram on the Microsoft high power laptop... frustrating to say the least.

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Hi Gian.T,

Sir I have been facing the problem from two days and none of the methods which you have suggested didn't work. 

I have installed eclipse java software and jdk, is the problem due to that?

Suspecting that it might have caused problem even i have deleted from my computer but it didn't work.

Can you suggest some method to get me relieved from this problem?

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It will not work, no matter what methods you are going to use. The problem is related to installed version of Windows. It will only be fixed once you do factory reset of your PC.

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This seems to work:
From a command prompt running as administrator execute
wpr -start Handle

wait about 5 seconds then execute:


wpr -stop Handle

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Hi.

I've tried almost all the solutions here and the others but couldn't solve my annoy.

My windows 10 version is 21H1 and GPU engine is Nvidia 930 MX, and all the drivers are up to date.

As well, the options on adjust the performance settings are blank.

Is there anyone who can tell me the exact solution?

My dwm.exe keeps getting bigger on the memory. :(

Thank you.

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Can I ask if you (or anyone else) have any external (specifically USB c) monitors plugged in when you get this issue? I've have a theory that the USB C drivers (provided by MS) have a memory leak that can be triggered by having your machine go to sleep while it's connected to a USB C monitor or hub. It usually manifests have resuming from sleep.

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I suppose you're right.

When i switched from HDMI to USB-C theres much more occuppied memory by dwm.exe.

I'm using sleep state also.

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Last updated October 15, 2021 Views 22,239 Applies to: