Windows 10: Desktop Window Manager's Using High Memory

Hi there folks,Desktop window manager seems to be using high memory. And when I say high, I mean high. Once I saw that it was using around 6 GB of Ram. Yes, ''6 GB''. Tried couple of fixes I found on the web, but none of them worked. Would be glad If you help me.Thanks a lot.

:)

 

Desktop Window Manager(DWM.exe) using high GPU

Hi Hasnat,

Thank you for writing to Microsoft community Forums.

In Windows, desktop composition is performed by Desktop Windows Manager. The way applications display pixels on the screen, it is managed by DWM. When desktop composition is enabled, individual windows no longer draw directly to the screen or primary
display device as they did in previous versions of Windows. Instead, their drawing is redirected to off-screen surfaces in video memory, which are then rendered into a desktop image and presented on the display.

The GPU (NVidia) usage of 35-40% by games is absolutely normal, however at the same time Desktop Windows Manager is using the high percentage of Intel GPU, which isn’t normal and it might be the cause of the low FPS.

I suggest to refer to the suggestions given by Reymichael Ros, dated March 2, 2018 on

Desktop Windows Manager (dwm.exe) load GPU too much.

If the above step doesn’t work, you may try setting the NVidia card to maximum performance and disable Intel graphics adapter to see if it works.

• Right click on desktop and select NVidia Control Panel from the context menu.
  
• Now on the left hand pane expand 3D settings.
  
• Click on Manage 3D settings.
  
• Under Preferred graphics processor, select
  High-performance NVidia processor.
  
• Click on Apply.
  

Before disabling the Intel graphics adapter, I would recommend to create a system restore point. Please refer to the article:
Create a system restore point.

• Press Windows key + R. This will open
  Run. Alternatively, you can go to Start and search for
  Run.
  
• In Run dialog box, type devmgmt.msc and hit enter.
  
• Expand Display adapters.
  
• Now right click on the Intel Graphics drivers and click on
  Disable.
  
• Click on OK.
  
• Reboot the computer and check the frame rate.
  

In case disabling Intel graphics adapter does not work, I would suggest to uninstall the Intel graphics drivers completely and install the latest drivers from the Intel support site.

• Press Windows key + R. This will open
  Run. Alternatively, you can go to Start and search for
  Run.
  
• In Run dialog box, type devmgmt.msc and hit enter.
  
• Expand Display adapters.
  
• Now right click on the Intel Graphics drivers and click on
  Uninstall.
  
• Check the checkbox to delete the drivers from the computer and reboot the computer.
  
• Download and install latest drivers from
  
  Downloads for Intel HD Graphics 630.
  

If none of the above methods works, I would encourage you to provide your feedback and suggestions using the Windows 10 Feedback Hub app, so that the Windows developer team has direct access to it.

Send feedback to Microsoft with Feedback Hub

Hope it helps.

Regards,

Peer Samie

Microsoft Community-Moderator

 

Desktop Windows Manager High Memory Usage

Hi Jay,

This high memory usage could have happened due to multiple application running. If Windows 10 has features that are not working properly, we suggest that you run the System File Checker tool and the Deployment Image Servicing and Management tool to scan
and correct any issues. System File Checker (SFC) is a built-in tool in the operating system. SFC checks for system file corruption. Deployment Image Servicing and Management (DISM) is a command-line tool that can be used to service a Windows image or to prepare
a Windows Preinstallation Environment image.

Kindly follow the steps in this article posted by
ZigZag3143 (MS -MVP) to perform SFC and DISM:
System file check (SFC) Scan and Repair System Files & DISM to fix things SFC cannot.

Update us with the result so we can further assist you.

 

Desktop Window Manager high memory usage

Hi,

Thank you for contacting Microsoft Community.
I will surely help you to fix this issue.

To understand the issue better, I would need more information from your end.

• 
  What all troubleshooting steps did you tried to fix this issue?
  
• 
  Did you make any recent hardware or software changes which might have caused this issue?
  

This issue could have occurred due to these reasons:

1. Conflict between third party applications.

2. Memory issues.

Please try the following steps if you have not tried them before. Check if it helps.

Method 1:

I suggest you to run System Maintenance troubleshooter and check if it helps.

a) Press the Windows key on the
keyboard.

b) Type troubleshooter in the search box and then press
enter.

c) Select Troubleshooting. Click on view all and select
System

Maintenance.

d) Click next and follow the on-screen instructions.

Method 2:

I suggest you to boot the computer to Safe Mode and check if the issue occurs. If the issue do not occur in Safe Mode, I suggest you to set the computer in a clean boot state and check if it helps.

Step 1:

I suggest you to refer the article to boot to safe mode.

http://windows.microsoft.com/en-in/windows-10/start-your-pc-in-safe-mode

Step 2:

If the issue do not occur in Safe Mode, perform a clean boot and check. Setting the system in a clean boot state will help to identify if any third party applications or startup items are causing the issue.

How to perform a clean boot in Windows

http://support.microsoft.com/kb/929135

Warning: After clean boot troubleshooting steps, refer to the section "How to reset the computer to start as usual after troubleshooting with clean boot" in the
provided link to return your computer to Normal startup mode.

Hope this information helps. Reply to the post with an updated status of the issue so that we can assist you further.