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Windows 7: DWM.exe stuck at 10-12% cpu, causing stuttering

03 May 2017   #11
CharlesKnell

Windows 7 Ultimate 64 bit
 
 

You might find this article helpful:
What Is Desktop Window Manager (dwm.exe) and Why Is It Running?


My System SpecsSystem Spec
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03 May 2017   #12
Brill

Win7 Pro 64 bit
 
 

Quote   Quote: Originally Posted by YaMoonSun View Post
Do a full scan with malwarebytes, customize the settings to include rootkits. Also, bring up the process manager and right click the process and open the file location. Where does it bring you? Check for latest gpu drivers as well, if problem persists after the scan.
Malwarebytes is clean. Path in process manager is C:\Windows\System32\dwm.exe. Video drivers are alreadyv up to date.
My System SpecsSystem Spec
03 May 2017   #13
Brill

Win7 Pro 64 bit
 
 

Quote   Quote: Originally Posted by respoda View Post
Could you check event viewer and post any eventID's logged ?

With those we can try finding the right direction to search for a full fix.
Better than doing guess work
The only relevant log I found was:
"The Desktop Window Manager has exited with code (0x40010004)" Event id 9009
My System SpecsSystem Spec
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04 May 2017   #14
YaMoonSun

Windows 7 Ultimate x64
 
 

According to this article, you're using IE, and IE is causing the error, and it recommends adding a 10 second delay if you insist upon using IE.
My System SpecsSystem Spec
04 May 2017   #15
respoda

win7 x64 sp1
 
 

Quote   Quote: Originally Posted by YaMoonSun View Post
According to this article, you're using IE, and IE is causing the error, and it recommends adding a 10 second delay if you insist upon using IE.
You can try, but that is only related to Citrix server/client, which isn't the case here.

No, more likely is it is caused by a crash of explorer.exe, which is responsable for the Desktop.

First you need to update your drivers (I'm guessing Nvidia ?).
If already up to date, uninstall them COMPLETELY and reboot.
Then let the system run on the default M$ display driver.
I'm betting the issue is gone.

Try reinstalling the Nvidia drivers again.
If that still doesn't solve it, execute the following two procedures :


1) start>run>msconfig, in general tab choose 'Normal Startup'. This will load ALL M$ services upon next boot.
Reboot.

If the issue still exists, do :

2) start>run>msconfig, in the services tab, click 'Hide all M$ services, and then 'Disable all'.
That will disable all non-M$ services. Reboot.


One of these should yield something, maybe other useful info in the event log.


Other things you can do is disable trilinear something something in the 3D settings of your display driver control panel. (EDIT: 'trilinear optimization')


EDIT : do you by any means have a custom theme running ?
Did you use Uxtheme or have you patched your files with uxthemepatcher ?
Maybe explorer is customized as well ? Just a guess here...
My System SpecsSystem Spec
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 DWM.exe stuck at 10-12% cpu, causing stuttering




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