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Svchost 100% CPU Only When Idle


lve finally after a while caught why my system randomly shoots up 10C in temp while idle.. it relates to svchost, however this leaves allot of questions because as far as lm aware svchost is a process that runs many others under it..


View 2 Replies (Posted: Aug 25, 2010)

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Svchost.exe PID / Process During Idle?
When I don't touch my computer for a while, I get CPU 100% (or CPU 50% on this dual core). As soon as I touch the mouse, in one second the culprit escapes. I know it's something under svchost.exe and I know I could see which svchost with Process Explorer or Svchost Viewer. But since the whole process disappears as soon as I touch mouse, it's pretty difficult to pinpoint. Svchost Viewer doesn't list all the processes in one screen, scrolling is needed. So it's basically always hidden and I can't scroll to it as that kills the process.How do I find out what exact process inside svchost.exe is eating my CPU during idle? My goal is to prevent the offending process altogether from starting.By the way, which settings of Windows Defender can cause this CPU 100% on idle problem, I didn't yet try shutting down all the settings there.

Posted: Jan 8, 2012

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What Does The '-k' Mean After Svchost.exe
It's to do with that svchost.exe thing that's running. When I typed svchost.exe in a search engine sometimes it'll say something like 'svchost.exe -k netsvcs' what is the meaning of '-k'?

Posted: Nov 19, 2011

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No Svchost Running At All?
Yesterday, I installed Foxit Reader, then decided I didn't like it. When I attempted to re-install, I received the error message that "the windows installer service could not be accessed." It was listed as running in the services applet of administrator tools, but would not work.While then exploring the system, I found other things that wouldn't work--for example, audio, which is what put me on to the same problem last May--and others. I got many "class not registered" errors. SFC won't run. When booting to the CD and running SFC, I got the old message about a pending repair, although I can find no trace of one. Ran malware scanners, of course, and the system came clean. Clean boot was not useful.The most significant thing I have found, which is probably at the root of this, is that in task manager, there are no instances of svchost running, unlike the usual ten or fifteen that normally run.I had this problem in May, and ended up doing a complete re-install of Windows 7 Home Premium. I would like to avoid going through that again. It's difficult with visual impairment. There is one potential similarity to now and the situaton in May, other than the symptoms described above. In May, I had tried installing a new nvidia card, which Windows wouldn't recognize, so I took it out and when I booted back to Windows, the above symptoms appeared. Yesterday, I saw in event viewer a dcom error, which traces back to the nvidia updatus "user."

Posted: Sep 14, 2011

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Svchost Using Too Much Memory?
For the past few days, my computer, which usually performs well, has started becoming very slow and freezing. When I open Task manager, I notice that the user SYSTEM always consumes a lot of memory (about 1000 MB), slowing my system down to a crawl. The guilty process is nearly always svchost.exe (service-SysMain; PID-1948;Description-Superfetch).

Tech Support Guy System Info Utility version 1.0.0.1
OS Version: Microsoft Windows 7 Ultimate , Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i3 CPU 540 @ 3.07GHz, Intel64 Family 6 Model 37 Stepping 5
Processor Count: 4
RAM: 3893 Mb
Graphics Card: Intel(R) HD Graphics, 1722 Mb
Hard Drives: C: Total - 59898 MB, Free - 5671 MB; D: Total - 138978 MB, Free - 119817 MB; E: Total - 138978 MB, Free - 132177 MB; F: Total - 138980 MB, Free - 64663 MB;
Motherboard: Intel Corporation, DH55PJ, AAE93812-302, BTPJ045000ZM
Antivirus: Kaspersky Internet Security, Enabled

Posted: Sep 13, 2011

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Svchost.exe Using 30% Of RAM Right After Boot?
I've noticed an issue with my laptop where an instance of svchost.exe takes up about 30% of my system's RAM, even after a fresh restart. I've tried stopping the process individually, but didn't notice a significant change. I ran a full scan with both Avast and Malwarebytes Anti-malware, but didn't find anything[CODE]

Posted: Sep 30, 2011

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Ekrn.exe & Svchost.exe Uses 100% CPU?
i use kind of an old computer but i remember it work very fast a while ago.

amd xp 2600+
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nvidia 6200 512mb

erkn and svchost uses 100 cpu latly.not always, but when opening a clip on Internet or full screen movie on vlc, cpu is on 100% too.runned a full scan on nod32 (in safe mod too) and also used malwarebytes and found nothing.runned a scan on hijackthis, here is the log:

logfile of trend micro hijackthis v2.0.4
scan saved at 15:48:14, on 09/07/2012
platform: windows 7 sp1 (winnt 6.00.3505)
msie: internet explorer v9.00 (9.00.8112.16446)
boot mode: normal

[code].....

Posted: Jul 9, 2012

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This problem started a few months ago. I've had this computer since December. I'm having the same problem with my wife's computer (Windows 7, 32-bit).

I have checked for malware with Norton 360, Webroot, Windows Defender, and a few other freebee programs. Other than a few cookies with low threat levels and "Power Reg Scheduler" there was nothing there. I have removed these few items. I have also run Wisefixer, that fixed over 200 supposed registry errors. None of this has had an effect.

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Posted: Sep 16, 2011

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Why Is Svchost Using All Broadband Bandwidth
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Slow During And After Startup - Svchost.exe?
For a quick run down of specs, I'm running Home premium 64-bit on an Advent Roma 4001, Intel Dual Core T4400, 4GB RAM and 500GB HD.

It's during the log-in screen that it tends to hang, on both the "Please wait..." and "Welcome" messages it takes between 30 seconds - 2 minutes, but the main problem occurs after logging in. The CPU usage, apart from System Idle Process (of course) is pretty much zero, and the RAM usage is down at about 30MB. Everything seems responsive, however, when I attempt to open a program or process I'm getting incredible lag, the type of unresponsiveness that would tempt you to do a hard reset.

The strange thing is it doesn't actually appear to be unresponsive. The programs all load given time and, for all running slowly for an amount of time, still run. What I have noticed is that svchost.exe seems to kick in at an undefined time and puts the RAM usage up to about 62,000K, with the CPU usage still being very low. When terminating the process, the theme will lose it's transparenecy and revert to a white theme, with processes continuing to run extremely slowly, until a few minutes pass, the windows 7 theme (with transparency) kicks in again and everything loads up immediately. After that, everything's fine - lightning fast.

I've tried chkdsk, messing around with msconfig and various other things to no avail. Am I missing something here? I'm stumped. I think given the problems I've been having aside from this (booting) I'm tempted to put it down to a faulty CPU or Harddrive (the 500GB size supports that probability, I think).

Posted: Oct 27, 2010

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I know how to

1. Find out how much memory is being used by each Svchost
2. Find out what processes are running under each Svchost
3. Identify the Process ID (PID) for each Svchost

If a Svchost has multiple processes running under it how do I find out how much memory each of those processes under a generic svchost is using?

1. Click on the Windows world ball
2. Type "command prompt"
3. Right click on "command prompt" and run as Adminstrator
4. At the command prompt first type in "tasklist /svc". This will give you the "Image Name" "PID" and "Process(s)" for each PID (Product Identification Number)
5.Follow the method described below for each Process that you want to isolate.

Creating an Isolated Process.What this method really does is modify one of the registry parameters for the service in question from a shared process to an isolated process. The command syntax is fairly straightforward and uses the sc config command set: sc config <service name> type= own. So for Windows Updates (wuauserv), the command would be: sc config wuauserv type= own. Note that there is a space between the '=' and 'own' - you must insert that space.

6. Reboot
7. Now repeat steps 1 - 4 below the double dotted line above
8. Verify that the "Process" that you wanted to isolate has its own PID
9. Type in Tasklist /FI "PID eq xxxx". Where "xxxx" is the number of the PID that you just isolated.Make sure to type in the quotes as indicated.

You will now be able to see the memory usage of the process that you just isolated. Note that the image name will still show as "Svchost.exe". To verify that you are looking at the correct PID, you can run "Process Explorer", go the PID in question, right click, left click on Properties, left click on Services and you will see the service that you just isolated. Does isolating a service out of a Svchost and creating its own Svchost change the total amount of memory that your system is using? I would think that it would because you are adding an additional Svchost for each process that you isolate.

Posted: Mar 14, 2011

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Hardware:

HP 8710W, fully updated softpacks
Nvidia latest driver for Quadro FX 1600M

Software: (which are important)

Windows 7 x64
Office 2010 x64
Google apps
Syncplicity
Dropbox
AVG Internet Security 2011
Adobe Master Collection CS5
Some AutoDesk suites
Tuneup utilities 2011
All Licensed

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Is this normal? And if it isn't how do I fix it?

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