Taskhost.exe using 40% of cpu

[olafgarten]

Hi, I was using my laptop (Acer S7-191), and noticed that the fans were spinning very loudly, and an first gen s7 user knows how distracting that is. I wanted to find out how to solve this.

Here is a screenshot from Task Manager

Here is the DLL's Running from process explorer (The one cut off at the bottom is userenv.dll)

I hope you can help solve my problem.

Thanks,
Harris Mirza

 

[Nikhil Das]

http://answers.microsoft.com/en-us/windows/forum/windows_7-performance/the-taskhostexe-application-consumes-50-60-of-the/0882ab46-43ee-4d90-8404-6802f8f4f2cf

Check if this can help.

 

[olafgarten]

i have read this and lots of similar threads, and cannot come to a solution.

 

[johnbl]

start process explorer, select file-> show detail for all processes
locate taskhost.exe in the list and double click it to bring up the threads.
my version is running 10 thread currently
looks like 3 going to a internal database and the rest being used by the RacEngn.dll
I think it is just looking and trying to send the various reliability data that it has collected to Microsoft.

if this is failing to connect or you have not given it permission it might have a very large database to contend with and take too long.

I would use the process explorer and look at each thread and see if one has unusual stats displayed and suspend the process.

or go to your windows action center icon, open action center, select maintenance, select view reliability history, select view all problem reports (at the bottom of the screen) then select clear "all problem reports" button.

it should only be the cause if there are a bunch of reports that have not been sent to Microsoft. you can turn off the reporting or clear the database in other ways.


I would think that many other programs can be also running, windows 8.1 will do a lot of checking that windows 7 does not do. It will check your entire hard drive for correctable read error and will move data off bad spots of the drive to new areas. Sorry, when I used process monitor on my system I only had light taskhost usage and only the error database and error reporting stuff was running.


if you do find the thead that ties up your system you and look at the disk and network usage to see where it is having the problem.

sorry, I know this is not much help. It is just hard to figure stuff like this out when you don't have direct access to the machine.

here: found a link on how to clear the problem reports: check to see if you have a bunch to report, then clear the list.
http://windows.microsoft.com/en-US/windows7/How-do-I-clear-the-problem-report-history-from-my-computer

there are other programs that might be using the taskhost to move files around by putting them in your hidden inetcahe directory.
(you might clear your chrome browser cache if you have not done so)

 

[shioriharu]

Mine is doing the exact same thing, but im more concerned about the 70c idle temp it creates, the unending workload it does, and the 10 gb of data it writes on my SSD and then wipes it.
I was unable to determine what causes this as i have blocked all windows updates and stuff from my machine.
I am unable to use my pc normally for weeks. (reinstalling windows is not an option, i have OEM)