Solved taskmgr taking 50 to 100% CPU time

March 16, 2011 at 11:33:53
Specs: Windows XP sv pack 3
dell vostro 1510, 1GB RAM
Runs perfectly until you watch too many videos, then suddely it goes into Very Slow mode and task manager window shows that taskmgr.exe is hogging most of the CPU time. Even when all applications have been closed, it cranks on, doing something that it chooses not to reveal to me. Only solution so far is to shut computer down, if necessary with the power button, and restart.

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✔ Best Answer
August 1, 2011 at 14:56:10
"I have realized one thing tought. HEATING! This stupid dell computers have a terrible ventilation, they are always hot hot if lying on a desk, almost boiling"

If it did'nt do it when new, it probably needs cleaning.

Curing Laptop/Notebook Overheating
http://moourl.com/fb7u8
http://moourl.com/dvgjb
http://moourl.com/syvjr
http://moourl.com/fzp1f
http://moourl.com/uprms
Cleaning a Laptop/Notebook Computer
http://mobileoffice.about.com/od/us...
http://lifehacker.com/software/life...



#1
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#2
May 7, 2011 at 16:38:45
I have EXACTLY the same problem as you mentioned. I have a Dell too, a Precision M4400 running windows 7 64bit, and reading that another dell user has the same problem makes me wonder if this has to do with a faulty Dell driver... However, when I kill WUDFHost.exe the taskmgr.exe lowers the cpu consumption. but that's it. after a while it regains 100 cpu consumption. Another workaround was setting the taskmgr.exe cpu affinity to only 1 processor and then the Priority to Low.

Let me know if you have found the solution please!!!
fulviofarina@gmail.com


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#3
May 7, 2011 at 16:59:45
"makes me wonder if this has to do with a faulty Dell driver"
Try running in Safe mode & see if you still have a problem.

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#4
June 7, 2011 at 07:45:55
Hello,

I have exactly the same problem with a Dell Precision M6400 under Vista ultimate.
All was ok until I reinstall my computer (because changing hard drive).

I've seen somewhere that video drivers could be responsible and I've updated them to the last ones from Nvidia website (for a quadro FX 2700) just today.

The problem still occurs, even if I have nothing launched (no ie nor ffox), just antivirus and some resident tools that I've tried also to stop without success.

And, in general, after closing all (if something is running), the problem disappear misteriously after a random time.

The pb just occurs now ... (I am on another computer) even though I'm not using the computer !

I've tried to kill WUDFhost but it still keep all cpu (taskmgr of course).
And I don't know how to tell Taskmgr to use only one processor.

If someone could help me ... I'm going to bo crazy !

kawapoulpe

PS : Sorry for my english ... I'm french !


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#5
August 1, 2011 at 11:16:26
Guys, I cannot understand what the f--- is wrong with taskmgr.exe, I think I tried everything, I even formated the drives and reinstalled windows with one program at a time. Nothing changes, after watching a few videos the taskmgr.exe takes it all and is impossible to go along. I have realized one thing tought. HEATING! This stupid dell computers have a terrible ventilation, they are always hot hot if lying on a desk, almost boiling. This problem almost always starts when the computer is hot. To keep the laptop cool I put a book under, so the laptop is at least 25 degrees separated from the desk. If you do that things will get better.

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#6
August 1, 2011 at 11:24:11
By the way kawapoulpe, In Task manager do a right click on taskmrg.exe process and select "Set Affinity" then uncheck one of the processors so at least one of them remains responsive. You can also select "Set Priority" and then "Low" to avoid taskmgr to have the default high priority. After that, keep the taskmgr opened, if you close it you have to set everything again from the begining.

if you found a solution to the problem please contact me at fulviofarina@gmail.com


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#7
August 1, 2011 at 14:56:10
✔ Best Answer
"I have realized one thing tought. HEATING! This stupid dell computers have a terrible ventilation, they are always hot hot if lying on a desk, almost boiling"

If it did'nt do it when new, it probably needs cleaning.

Curing Laptop/Notebook Overheating
http://moourl.com/fb7u8
http://moourl.com/dvgjb
http://moourl.com/syvjr
http://moourl.com/fzp1f
http://moourl.com/uprms
Cleaning a Laptop/Notebook Computer
http://mobileoffice.about.com/od/us...
http://lifehacker.com/software/life...


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#8
August 7, 2011 at 01:50:34
Hey Johnw, thanks for your quick post and all your help. I will try out what you suggested, cleaning the laptop and let you guys know.

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#9
August 7, 2011 at 03:46:22
Ok fulviofarina, good luck.

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#10
August 12, 2011 at 08:38:35
The suggestion that the problem is due to overheating sounded right, so I took the bottom off the computer in the area where the fan is and wiped out all visible dust and blew dust out of the air vents (using an air pump that inflates my exercise ball!, but a bicycle tyre pump would probably do as well). In particular I found a lot of dust by blowing IN at the vent where the air comes out. I then set the machine up with a book under the back (not interfering with any of the vents, of course) and it looks like the problem is fixed.

Thank you everyone for your suggestions.
DavidHN (I posted the original question)


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