Windows 10: Windows 11 - DWM.exe only uses integrated GPU - does not follow Graphics preference

Hi all,I have found that DWM.exe is very slow - resulting in Windows 95'esque window performance - when using integrated GPU in this case, Iris Xe. I have attempted to specify c:\windows\system32\dwm.exe in the System > Display > Graphics area and configured it to use High Performance the A2000 discrete GPU in my laptop.When I test it - by having Task Manager open, Details, GPU / GPU Engine shown, it shows DWM using 100% of GPU0, when I move an Outlook window around Outlook is also set to High Performance, and reflects properly as GPU1

:)

 

How can I force my dedicated GPU to handle all applications or disable my integrated GPU?

From pureinfotech:

 

Is there a way to force a program to use a secondary GPU?

Hi Zeond1987,

Thank you for posting your question in the Microsoft Community.

Are you getting any error message?

If you have a multi-GPU system running Windows 10, you can now manually specify the preferred graphics processor an app should use for performance or to improve battery life.

In order to force an app to use a discrete GPU instead of the integrated one, or vice versa to provide better system performance or battery life, I suggest you to follow the below steps.

1. Open Settings, and click/tap on the System icon. Click on System.

2. Click on Display on the left side

3. Under “Multiple displays,” click the Advanced graphics settings link.

4. Select the kind of app you want to configured using the drop-down menu:

Classic app — these are your traditional Win32 desktop programs.

Universal app — these are those app available through the Microsoft Store.

5. If you select Classic app, you’ll need to click the Browse button to locate the “.exe” file to add the app. Otherwise, if you select the Universal app option, you’ll see a second drop-down menu to select the app.

6. Select the app you added from the list.

7. Click the Options button

8. Set the graphics preference you want to use:

System default — this is always the default setting, and Windows 10 decide which GPU to use automatically.

Power saving — runs the application on the GPU that uses the least power, which most of the time is your integrated graphics processor.

High performance — runs the application on the most capable GPU, which is most of the time an external or discrete graphics processor.

9. Click the Save button.

I also recommend you to update the GTX 1080 drivers from the manufacturer website, and
Check if that work.

Hope it helps,

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