Causes windows 7 desktop window manager (wdm.exe) to use large amounts of memory

Whenever I have Firefox4 open, it causes dwm.exe (Windows desktop manager) to use large amounts of RAM - It starts at about 100MB, quickly increasing to about 1GB over 20 seconds, then dropping back down to 100MB and so on. It does this continuously while Firefox4 is open, with the occasional "Your computer is running slow" message being shown by Windows.
Update: Only occurs when browser isn't on the primary display on a multi-monitor setup.

I had the exact same problem. DWM would use massive amount of memory when Firefox 4 was open on my secondary display, especially when scrolling with the mouse wheel. It would use so much that Windows 7 (8GB RAM) would turn off Aero. Going into Options>Advanced>General and unchecking "use hardware acceleration" fixed the issue. Of course now I can't take advantage of any hardware acceleration.

Similar Messages

I use windows desktop at home and want to use Apple laptop on the go. What do I have to do?

I use windows desktop at home and want to use Apple laptop on the go. What do I have to do to be able to use both platforms when my account is for Win.? I am thinking of converting my home computer to Apple as well in the near future. Thanks
Message was edited by: m48more

m48more wrote:
What do I have to do to be able to use both platforms when my account is for Win.?
Cloud accounts are multi-platform.
You have a maximum of two activations but can use them on Win/Win or Mac/Mac or Win/Mac. The choice is yours.

Is it wrong or why Firefox uses it as an extremely large amount of memory? I'm running Firefox 7.0.1 on Windows 7 and it is more or less constant over 1.5 GB of memory utilization, twice as much as they early version 6. Best regards Jonas Walther

Is it wrong or why Firefox uses it as an extremely large amount of memory?
I'm running Firefox 7.0.1 on Windows 7 and it is more or less constant over 1.5 GB of memory utilization, twice as much as they early version 6.
Best regards
Jonas Walther

Hi musicfan, Sorry you are having problems with Firefox. Maybe you should have asked earlier and we could have fixed it.
Reading your comments I do not see that rolling back to an insecure Firefox 22 will actually help you much. You are probably best using IE, unless you have also damaged that.
*[[Export bookmarks to Internet Explorer]]
You should not use old versions they are insecure. Security fixes are publicised and exploitable.
* [[Install an older version of Firefox]]
* https://www.mozilla.org/security/known-vulnerabilities/firefox.html
Most others will not be having such problems. We are now able to say that with confidence because after developers missed a regression in Firefox 4 telemetry was introduced so that data was obtained. It may be an idea to turn on your telemetry, if you have not already done so, and decide to stick with Firefox.
*[[Send performance data to Mozilla to help improve Firefox]]
Trying safe mode takes seconds. Unfortunatly if you are not willing to do even rudimentary troubleshooting there is not anything we can do to help you.
*[[Troubleshoot Firefox issues using Safe Mode]]

ScanToPCActivationApp.exe is using a lot of memory even though the printer is off.

ScanToPCActivationApp.exe is using a lot of memory even though the printer is off.
Upon computer boot up, Task Manager shows it is using 45mb, and after researching this topic using IE, 10 minutes later it now shows it is using 74 mg, although it did go down to 33 mg a few minutes later, then back up to 51 mg a few minutes after that.
Is there a way to keep it from using so much memory when the printer is turned off?.
I am running Windows 7 on a Samsung Series 7 laptop and my printer is an HP 8600 All-in-one. I do use ePrintCenter occasionally, and also have a MacBook Pro (running Mountain Lion), and iPhone 4 (running the latest IOSupdate) and all devices connect to the printer wirelessly.
Please let me know if there is more info that you require. Thank you in advance!

The best thing to do is uninstall iTunes and install turn to him, but another look from thedownload page do not you reinstall the exe you have already installed ahy maybe youriTunes installer is in bug

My ituneshelper.exe is using a lot of memory.

My ituneshelper.exe is using a lot of memory. I-tunes is not running and my I-pod is not attached.
Is there anything I can do about this? Can I stop this from loading at start-up and only load when I open I-tunes?
If so .. how???

The best thing to do is uninstall iTunes and install turn to him, but another look from thedownload page do not you reinstall the exe you have already installed ahy maybe youriTunes installer is in bug

MY phone is using large amounts of data, when i then go to system services, it s my mapping services thats causing it. what are mapping services and how do i swithch them off. i really need help.

MY phone is using large amounts of data, when i then go to system services, it s my mapping services thats causing it. what are mapping services and how do i swithch them off. i really need help.

I Have the same problem, I switched off location services, maps in data, whatever else maps could be involved in nd then just last nite it chewed 100mb... I'm also on vodacom so I'm seeing a pattern here somehow. Siri was switched on however so I switched it off now nd will see what happens. but I'm gonna go into both apple and vodacom this afternoon because this must be sorted out its a serious issue we have on our hands and some uproar needs to be made against those responsible!

Firefox.exe* uses large amount of cpu 40-50%

My computer slows and task manager shows firefox.exe* very large cpu usage.

You can try to disable OMTC and leave hardware acceleration in Firefox enabled.
*about:config page: layers.offmainthreadcomposition.enabled = false
You can open the about:config page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
*http://kb.mozillazine.org/about:config
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.
*https://support.mozilla.org/kb/how-do-i-upgrade-my-graphics-drivers

Vmtoolsd.exe is using a lot of threads

Hi All,
We're using VMware tools a few years now on our Windows 2012R2 environment.
But the last months we get complains from some of our remote desktop users that our servers are slow, memory is full, and users can't sign out/in.
After investigating this issue, we see that VMtoolsd.exe is using a lot of memory.
And it takes a lot of time to kill the process.
We discovered in the Resource monitor that the process is using a lot of threads (sometimes 80.000). After killing the process the threads are slowly counting down to zero . After that the server is responding normal.
On internet I can't find anyone who has this issue.
We have a lot of servers. This issue is only on a few of them.
We're using ESXi 5.0 and VMtools 8.6.11 build-1310128
Does anyone know what is going on?

Wow, it looks like you're using the tools that came with ESXi 5.0 Update 3 from October 2013. There have been several patches for ESXi 5.0 since Update 3. The most recent patch for ESXi 5.0 has newer tools (8.6.15 build-2495133).
See here: http://packages.vmware.com/tools/esx/5.0latest/index.html

Desktop Window Manager Service on Windows 7 Starter - Any Reason to Leave It Running?

Hello everyone,
-As per title, I'd like to know whether is it better to turn off Desktop Window Manager Session Manager (UxSms) service on Windows 7 Starter - or not. I mean changing the service's default startup type from Automatic to Manual (or Disabled).
-In Windows 7 Starter, the Aero theme and desktop composition are not available at all (not even a basic/partial one), so letting Desktop Window Manager (DWM.exe) to continuously run is useless as it does absolutely nothing. Is my deduction correct?
-All opinions and suggestions are welcomed, thank you very much.
Regards,
-Musafir_86.

Please read the information posted @
http://msdn.microsoft.com/en-us/library/windows/desktop/aa969540%28v=vs.85%29.aspx
Desktop Window Manager
The desktop composition feature, introduced in Windows Vista, fundamentally changed the way applications display pixels on the screen. 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.
Desktop composition is performed by the Desktop Window Manager (DWM). Through desktop composition, DWM enables visual effects on the desktop
as well as various features such as glass window frames, 3-D window transition animations, Windows Flip and Windows Flip3D, and high resolution support.
The Desktop Window Manager runs as a Windows service. It can be enabled and disabled through the Administrative Tools Control Panel item, under Services, as Desktop Window Manager Session Manager.
Many of the DWM features can be controlled or accessed by an application through the DWM APIs. The following documentation describes the features and requirements of the DWM APIs.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

Desktop Window Manager high CPU utilization

I have several Windows 2012 servers that are showing high CPU utilization (70% or higher) coming from the Desktop Window Manager. I do not have the Desktop Experience feature installed on these machines. The interesting thing is that the process
for dwm.exe does not show up as a service that I can stop or restart. I've read through the various posts about re-registering dmw.exe so that the service shows up again, but nothing has worked. Since these are application and file servers with
no need for regular desktop use, I don't really need any fancy desktop graphics or performance. I have the Advanced Performance Options set to 'Background services'. Can anyone tell me how to stop dwm.exe or at least reduce it's CPU footprint?
Thanks,
Joe

Hi Joe,
Based on my research, On Windows 8 and Windows Server 2012, DWM is used at all times and cannot be disabled.
For more detailed information, please refer to this article:
Desktop Window Manager is always on:
To troubleshoot the high usage of CPU, I would like to recommend to follow this article to collect and analyse the relevant log files and dump files:
Troubleshooting High CPU performance issues - Part 1
If you want to analyse the dump file, I also recommend you can open case and contact Microsoft support.
I hope this helps.

When I close Firefox, the windows closes normally, but firefox.exe still appears in Processes in Task Manager. I have to End Process to open Firefox again, and it goes to Restore Last Session page.

When I close Firefox, the windows closes normally, but firefox.exe still appears in Processes in Task Manager. I have to End Process to open Firefox again, and it goes to Restore Last Session page.
Quando eu fecho o Firefox, a janela fecha normalmente, mas o firefox.exe ainda aparece no Processos do Gerenciador de Tarefas. Eu tenho que Finalizar Tarefa pra abrir o Firefox de novo, e quando abre vai para a página de Restaurar Última Sessão.

I have the same problem - every time I close firefox (using either the red x or by selecting file ---> exit) the program appears to close normally, but the firefox.exe *32 process continues to run. If I try to re-open firefox normally I get a message that the program is still running and I need to go into task manager and manually kill the process.
I could also kill the process from the command prompt, but both of those methods are slow and annoying. This issue has only been occurring for the last 24 hours or so; to the best of my knowledge I haven't downloaded any new software or updated any plug-ins that would have caused a switch from firefox's normal awesomeness. Norton doesn't show any new viruses or other nastiness on my computer.
I'm running 64 bit Windows 7 Home Premium edition.

Remote desktop connection manager on windows 8.1, can't connect to windows server 2012 R2, Socket closed

remote desktop connection manager on windows 8.1, can't connect to windows server 2012 R2, Socket closed each time i try to open remote connection to the server,
does remote desktop connection manager V2.2 not compatible with windows 8.1, and if so, is there are any other compatible versions
or what's the problem,
Mahmoud Sabry IT System Engineer

this issue maybe will be fix by latest version, we still waiting for it
maybe your issue can be fix using this methods
https://social.technet.microsoft.com/Forums/windowsserver/en-US/61f218a5-5ef8-49da-a035-90cdd64fc9a0/problem-with-remote-desktop-connection-manager-error-3334?forum=winserverTS
http://shawn.meunier.com/?p=1#comment-43

TS4194 When I reboot my windows desktop i get a message that says apsdaemon.exe can not start because msvcr80.dll is missing. How do i fix this? Thank you in advance.

When I reboot my windows desktop i get a message that says apsdaemon.exe can not start because msvcr80.dll is missing. How do i fix this? Thank you in advance.

Uninstall your existing copy of iTunes. Delete any copies of the iTunesSetup.exe (or iTunes64Setup.exe) installer files from your downloads areas for your web browsers and download a fresh copy of the iTunes installer from the Apple website:
http://www.apple.com/itunes/download/
(The current build of the 11.1.4.62 installer was changed a few days ago, which fixed the bulk of the reports of MSVCR80.dll/R6034/APSDaemon.exe/Error-7/AMDS-could-not-start trouble ... but the build number on the installer was not changed. So we're trying to make sure you do the reinstall using a "new good" 11.1.4.62 installer instead of an "old bad".)
Does the install with the new copy of the installer go through properly? If so, does that clear up the error message?
If you still have the same error messages cropping up, then try the procedures from the following user tip:
Troubleshooting issues with iTunes for Windows updates

Problem mit ThinkPad Power Manager Desktop Windows 8.1 Thinkpad W530

Hallo Zusammen
Ich habe auf meinem W530 Windows 8.1 installiert.
Ich habe von der Lenovo Website folgendes Tool heruntergeladen und installiert "ThinkPad Power Manager Desktop Windows 8.1". Das hat alles soweit geklappt.
Nun wollte ich die Einstellungen ändern, es zeigt mir aber nur den Netztbetrieb an ich kann keine Einstellungen ändern für dne Akkubetrieb (Siehe Bild)
Hat jemand eine Ahnung wie ich die Einstellungen für den Akkubetrieb ändern kann.
Ich bin fast am verzweifeln, denn der Energie-Manager von Windows ist absoluter schrott, der Akku ist ständig leer.
Besten Dank
Chrigge
Gelöst!
Gehe zu Lösung.

Dank für deine Antwort.
IntecBerlin schrieb:
Klick mal oben auf Wechseln zu Allgemein da hast du glaub ich eine bessere Ansicht und ganz regeln "Hohe Leistung" oder "Lange Akkulebensdauer. etc..
Ich habe es ausprobiert, aber es ändert sich garnichts an den Einstellungen, weder wird die Bildschirmhelligkeit verringert noch hält der Akku wirklich länger.
Ich habe das Gefühl, dass die Windows einstellungen den Powermanager von Lenovo übersteuern.
IntecBerlin schrieb:
Ansonsten wenn du denn Akku länger halten willst unten auf Maximale Energiesparung klicken.
Dieses Vorgehen ist für mich nicht so praktikabel, denn ich möchte die Einstellungen lieber einzeln vornehmen, um die Akkulebensdauer und Performance an meine Bedürfnisse anzupassen.
Gruss
Chrigge

Firefox causes Windows 7 Device Manager to constantly refresh/reset

When I execute Firefox, my Windows 7 Device Manager begins to constantly reset/refresh.
This happens about every 10 seconds.
Even when I have disabled all extensions and add-ons and I have removed and reinstalled Firefox, the behavior still happens.
The behavior disappears if I (i) terminate Firefox, (ii) run Explorer or (iii) run Chrome.
Any thoughts?

Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?
Start your '''Computer''' in safe mode with networking. Then start Firefox.
Try '''Safe''' web sites. Is the problem still there?
'''[http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting The Computer In Safe Mode; Free Online Encyclopedia]'''

Causes windows 7 desktop window manager (wdm.exe) to use large amounts of memory

Similar Messages

Maybe you are looking for