Comments for Svchost and Svchost.exe - Crashs, CPU maximization, viruses, exploits and more.

Comment from Leo A. Notenboom on 2007-05-09

2007-05-10T02:14:53Z

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I'm closing comments on this article simply due to the sheer volume.

I've created a new article:
http://ask-leo.com/how_do_i_fix_this_high_cpu_usage_svchost_virus_or_whatever_it_is.html
that deals with the current "100% CPU Usage" issue that so many people seem to
be experiencing.

Many thanks to all the commentors here who added value to the thread for others
to come and find.

Leo

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Comment from Greg on 2007-05-09

2007-05-10T00:39:40Z

The remove and reinstall was easy to use and worked for me also.

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Comment from Darryl on 2007-05-09

2007-05-09T21:35:38Z

The Remove and Reinstall worked for me! Thanks all.

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Comment from penn919 on 2007-05-09

2007-05-09T19:41:57Z

The Remove and Reinstall of Windows Updates really does work. I just tried it, and not only is svchost acting normal again, but my windows firewall is also back an running after it was refusing to turn on.
http://www.amset.info/windows/auto-updates.asp#Reset%20Automatic%20Updates

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Comment from Lance on 2007-05-09

2007-05-09T18:16:17Z

I just got this problem bad this morning when I restarted my laptop from hibernation. Although, network access had been getting really slow over the last two weeks, so for me at least, it's been an incrementally worse problem until I got hit hard this morning.

Microsoft thinks they have a fix for this problem. The article is ID 903737 and can be found at:
http://support.microsoft.com/kb/903737#appliesto

But you must contact their phone support to have them email a link to where you can download it from.

I installed their 'fix', and it did absolutely nothing initially. However, I had some other pending MS updates that I then installed and rebooted a second time. After the second reboot, svchost only ran wild for 3 minutes after I logged in (quite an improvement from running wild for over an hour before I just gave up and pulled the battery out of the laptop). Who knows, maybe this will help your situation, too.

As a confidence builder, MS has had this fix since July 2006, and has yet to roll it into any of their numerous updates...

Maybe Louis' fix will work for me and get rid of that initial 3 minute lockup after login? We'll see

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Comment from Louis on 2007-05-09

2007-05-09T17:29:36Z

I had problems with svchost hogging cpu that I traced to Windows Update. I found that the Remove and Reinstall of Windows Updates at http://www.amset.info/windows/auto-updates.asp#Reset%20Automatic%20Updates
solved the problem, at least for now. So thanks, Marko!

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Comment from ^Lestat on 2007-05-09

2007-05-09T17:14:03Z

I found (after many hours) that if you run the windows update when you are not using the PC you can get the updates and return the svchost.exe back to 'normal'. Youll have to at least wait to get past the 'Do you want to install these updates' option, then go to bed. Let it run all night while you are sleepin.

This is sad however, that I can't find a MS fix for this.

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Comment from Noramn on 2007-05-09

2007-05-09T15:08:09Z

Reading comments posted here is reassuring because its apparent this is a serious and common problem. It started for me a month or so ago and I got temporary releif using a program called RegCure but now its back, and I am again deleting the busiest svchost in Task Manager. Before I give up, and swap to my spare hard drive I'll try the fixes I've read here related to killing the Microsoft Automatic updates and also use Process Explorer with hopes of locating a file that its latching onto to. Before I thought the problem would ony arise when connecting to the internet but now it happens whether connected or not.

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Comment from Michael on 2007-05-09

2007-05-09T14:46:18Z

I am being driven mad by this svchost pest,and followed the step by step procedure hoping to counteract it.like the previous guy i had exactly the same problem with the "Protect my computer and network by limiting" check, and furthermore I had a problem with the "A buffer overrun in RPCSS could allow an attacker to run malicious programs" - basicly I need the 32-bit version ,which seems not to exsist.

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Comment from Kyle on 2007-05-09

2007-05-09T14:29:20Z

Morning,

I have the problem listed above, svchost is running when I am connected to the internet. It clogs up all my CPU and if I want to be able to do anything at all I need to end that process (I have numerous svchosts running, of which one is taking up 99% cpu).

anyway, I tried to use your advice and turn on the "Protect my computer and network by limiting..." however I don't have a check mark for it only a [settings] box. when I click that it asks me if I want to install it and when I click yes it gives me some sort of error.

I first got this problem this morning when I booted up my computer...I have never seen it before to this extent.

Help! =)

thanks much,
~kyle

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Comment from brandon on 2007-05-08

2007-05-09T01:20:42Z

Along with the numerous people, I myself has experienced the same problem. First, we turn on the computer. All good. Second we log in and wait patiently as svchost.exe runs SYSTEM runs up to 100%. The only way to take it down and access any kind of program is to shut it down from the windows task manager. This takes out the sound and sometimes messes up the dial-up phone book. I have downloaded countless programs to scan and prevent further happenings, but still the problem consists. Crashing the computer with a baseball bat seems the better alternative to a virus crashing it. What to do?

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Comment from TUX on 2007-05-08

2007-05-08T17:53:22Z

I found that the best way to fix this problem is to format the hard drive and install Linux.

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Comment from Marko Popovich on 2007-05-05

2007-05-06T05:03:20Z

All, the runaway process is most likely "automatic Updates" (ie wuauclt.exe). The fix is to reinstall the file. go to this site for more details (http://www.amset.info/windows/auto-updates.asp). Go to the bottom of the page and skip the restart and fix and go to directly reinstall (make sure all the update processes are off first). Good Luck. MP

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Comment from Weng Chin on 2007-05-02

2007-05-02T14:31:14Z

I agree, I used to bring the task manager up the first thing when I switched on the computer then stopped the process if it went to 100% but now I just switch on the computer and let it run, go and make myself a cup of coffee then only come back to the computer, I guess we just have to take it easy!

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Comment from Ian Whyteside on 2007-05-02

2007-05-02T11:30:58Z

I too get daily problems with svchost.exe and I have ended the process using Task Manager but like others this merely results in further delays and problems with other programmes so I dont do it anymore.

I have taken all the advice, I already had firewalls, Ad-Aware, Windows Defender and Virus Software, all up to date but it still happens.

My view is that as soon as this programme decides to do what it does it seems best to let it get on with it (whatever it is) go make some coffee and come back when its finished. It takes longer to finish if you muck about so why bother. It just all goes to show how impossibly silly these machines are, give me back my quill pen and parchment please!

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Comment from Mike on 2007-04-26

2007-04-26T17:27:31Z

Like Stephan above, I end the process in the task manager but then I lose all sound from my machine and end up restarting my computer. The SVCHOST.EXE always grabs 100% and I blame it on static electricity. As long as I walk around barefoot, no problem. I only need to know how to restart the hoggish svchost.exe without resorting to a complete restart.

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Comment from MikeL on 2007-04-25

2007-04-25T21:08:15Z

Ok,
svchost.exe is at 99% on my laptop. I read all the data/suggestions posted. I followed the usual "règles de guerre" in trying to rid myself of this pest. Updated my antivirus, ran a scan, ran the latest stinger utility, ran "tasklist" with no success, except that the PID was 660. I finally downloaded "process explorer"....http://www.microsoft.com/technet/sysinternals/ProcessesAndThreads/ProcessExplorer.mspx
and found out it was a very unlikely source.
windows\system32\1032\dll\projects\setiathome.berkeley\svchost.exe
HA! I laughed myself silly. I have never gone to the SETI site......I did do a search on svchost.exe, but was reluctant to just start deleting anything without any associations...

Bottom line..... Download process explorer and then you will see where this file is associated by PID. Then kill it.

Mike.

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Comment from Josh on 2007-04-25

2007-04-25T17:21:14Z

I run Windows XP and I attempted the recommended process for solving the svchost.exe problem, but after I go Control Panel -> Network Connections -> Internet Connection Properties -> Advanced and go to check the "Protect my computer and network by limiting or preventing access to this computer from the Internet" settings button an error message comes up that says: "Windows Firewall settings cannot be displayed because the associated service is not running. Do you want to start the windows Firewall/Internet Connection Sharing (ICS) Service? [Ok] [Cancel].

What does this mean, and do you have any recommended course of action?

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Comment from Donavan on 2007-04-17

2007-04-18T07:40:45Z

when i booted up my PC the svchost.exe would eat up tons of processing power (80-90%).. however i was able to make this stop by disabling atomatic updates... now the problem only returns when i manually try to find updates...

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Comment from Stephan on 2007-04-17

2007-04-17T15:28:56Z

I found a stupid patch to fix the problem.
- First thing I do when I start windows is opening my task manager and sort by "Image Name". I slide down to the list of "svchost processes". I then run my browser as usual. For sure, soon I get that 100% CPU usage. Task manager is still accessible without any delay. I select the "svchost.exe" at 100% and "END THE PROCESS". It takes few seconds. Once cancel, that "svchost.exe" leave my computer as long as I stay connected. It's cumbersome, but it works for me.
NOTE: If I switch user in Window, the same exercise as to be redone.

- It worth a try.

Stephan

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Comment from Jack Rowe on 2007-04-14

2007-04-14T22:11:41Z

HI,
Great site by the way.
Question: My daughter computer is sluggish and has been so. She gets the following msg at startup (4) times; back, to back, to back, to back.

Error:
Execution of the specified command has failed.

There is nothing directing me to what ever is causing this error. How should I find these errors?

Thank you in advacne for you help.
Jack

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Comment from Anon on 2007-04-01

2007-04-01T14:33:07Z

If you're having an svchost error go to this page:

http://swigartconsulting.blogs.com/tech_blender/2006/07/windows_update_.html

It helped me out tons.

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Comment from maya nav on 2007-03-24

2007-03-24T22:45:30Z

My cpu usage runs at 90%-100% without me running any unusual progs. Suddenly it drops to 15% or so, without reason. I doubt some1 is hijacking mp pc from under my nose. SpyDoctor and Spyeraser didn't find this hijacker. But i got 8 svchost.exe processes running under System, Local services and Network service. Is that normal? could any of these be a hijacker?

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Comment from Leo Notenboom on 2007-03-22

2007-03-22T22:46:53Z

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I'd point you at this article as a place to start to figure out where the disk
space is going:
http://ask-leo.com/how_can_i_tell_whats_taking_up_so_much_disk_space.html

Leo
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Comment from Jay Fedigan on 2007-03-22

2007-03-22T16:58:14Z

I'm running XP and it is updated. When I turn on my computer I have over 5 gigs free on my C drive(my drive is partitioned) after a few minutes I get an error message that I have no space left on C. When I checlk I have only 700k free. When I reboot the same thing happens again.

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Comment from john on 2007-03-21

2007-03-22T07:17:37Z

this happens on boot up sometimes i let it do what it needs 2 for maybe 2-3mins then its ok, when it first occured use to end svchost.exe in options this stopped it but the desktop would flicker then change to classic view and icons would disappear almost like a semi safe mode look, then for some reason i couldnt end process, knowing the importance of this file i no longer end process

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Comment from Chrystin on 2007-03-20

2007-03-21T01:57:29Z

I have svchost spiking to 100% every few hours and locking up my computer. I then go to the Task Manager, identify the process that's sucking 90-99% and end it. As soon as the process is ended everything goes back to normal. But it's so annoying I'm considering reinstalling the OS.

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Comment from Steve on 2007-03-20

2007-03-20T16:55:32Z

There is a solution that worked for me at this site:
http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=906329&SiteID=2
(The 4th post, by pati610.)

Be aware, however, that this procedure disabled my USB wireless network adapter. I had to unplug my adapter, then plug it back in, and when my network reconnected I had to reenter my security key.

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Comment from JCDB on 2007-03-17

2007-03-17T16:43:36Z

Well! I turned off automatic updates and I still experience the problem. My anti-virus/anti-spyware are McAfee and up to date.

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Comment from natz on 2007-03-16

2007-03-17T06:29:55Z

I have also found that if you turn off automatic updates in the security centre you don't get the SVCHOST problem, I experience the same problem (of svchost takes 99% of CPU usage) whenever i manually check for updates with microsoft website. Can anyone tell me the solution for this?

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Comment from Iulian on 2007-03-16

2007-03-16T23:27:45Z

Indeed, this is the process that kills my nerves like 10 min. Its svchost.exe -netsvcs aka Windows Automatic Updates. Now disabling may do it, but this is a very important service and you'll need to run it manual from time to time.

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Comment from Ziv Shadar on 2007-03-16

2007-03-16T15:35:10Z

It is a known problem with MS XP, and MS still don't have a fix that actually works.
To try the fix they have and read all about it go to http://support.microsoft.com/kb/932494
I whish they fix it by now.

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Comment from Andreas on 2007-03-16

2007-03-16T13:55:05Z

The solve for this: Turn off Automatic Microsoft updates in the Security Center on your computer.. Suddenly, everything runs smoothly.. Very nice. And check updates at www.microsoft.com instead.

Gratz!

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Comment from Patrick on 2007-03-11

2007-03-12T04:42:29Z

Same deal...MS update and svchost runs CPU utilization to 100% - performing a restart, for some reason, svchost drops to "normal". Does anyone have idea why...and when is MS going to correct this?

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Comment from George Vidos on 2007-03-06

2007-03-06T21:39:43Z

I experience exactly the same problem with high CPU utilization, high IO Reads all coming from svchost.exe. I've used Process Explorer application and it has indicated that the CPU resources are being sucked by wuauclt.exe. This has started happening a couple of days ago, when I performed a Microsoft Update. I hope Microsoft will release an Update which will resolve this issue, ASAP.

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Comment from Tim Turpin on 2007-03-03

2007-03-04T01:45:51Z

Just to let you all know; I have this same issue, but did not have this problem until I had to install a new hard drive due to mechanical problems and reformat and install winXP pro again. Prior to this I had all recent updates on winXP pro and ran all kinds of security - but never had an svchost problem. After installing a new hard drive I reformatted the drive, installed winxp pro(and was NOT physically connected to my dsl router in any way). I made a cd from my secure laptop with various winXP updates and AVG anti-virus program. I installed them prior to connecting to my home network which is NATed. Once connected to my LAN, the only web site I visited was windows update ( I remember the days of installing a new copy of win2K, trying to go to win updates web site and instantly getting hit with all kinds of crap). So now my pc is only running winXP pro sp2 with all recent security updates and I still peg 100% when I visit the windows update site. I only have the following software installed; MS office 2003 with all updates, AVG anti-virus, IrfanView, HP deskjet F380 software & drivers, Adobe reader 8, winzip 11, ATI catalyst control center, Widows media player 11 - THAT'S IT AND STILL SVCHOST PEGS MY CPU - COME ON MICROSOFT PATCH THE PATCH THAT CAUSED THIS!!!!!!!!!!!!!!!!!

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Comment from Andy on 2007-02-27

2007-02-27T12:08:50Z

My Hp laptop runs fine if I am connected to the network at work or connected to my DSL router at home. If I disconnect from either network my processor runs from 0-5% straight 100%. It is svchost.exe taking up most of the resources? How can I fix this? Any ideas?

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Comment from Cmdr Beta on 2007-02-26

2007-02-27T01:40:48Z

I have that problem as well. I suspect Svchost goes to high CPU for several reasons on my win XP Pro laptop:
1) Automatic updates
2) Norton Anti-virus
3) Windows Defender

All three load as windows services and are big resource hogs. They also heavily engage in HD access with their file scanning. Since I have a laptop with a 5400 rpm HD, the laptop bogs down during these disk scans, and its speed declines from 1.8 Ghz to 5400 rpm. Argh. Argh. Argh. Microsoft and Norton have to optimize their code. Don't they have enough money to do this? Sheesh.

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Comment from Jose Suarez, yes I'm a Mex on 2007-02-23

2007-02-24T04:18:41Z

Once you are logged on to your pc and svchost.exe starts to use the cpu, wait for two min, then do the Ctrl+alt+del key combo, and just kill the process, if you don't have a NT based pc, kill the process from Command promp just insert Kill (name of process) and enter, if you have a Win32 inatllation disk, simply if you have XP (CdRoom) press F8 and get into Safe Mode, insert the Xp disk and reinstall, if you donot have a Xp disk you can download the disk via torrent just visit bitlord.com and thepiratebay.org and get yourself some Vkl cd keys and the disk image or Iso the using nero or your tird party cdr software, Svchost is ussually what happens wen you get rid of a Rouge Anti/virus/spyware manually or automaticly by your real antivirus software the your computer start a memmory leak and halts using a blue screen, and my friend Andy found another way to solve this problem, but my piont is reinstall your OS, or even do a system restore, or from comand promp type (safemode) this Chkdsk /f and it will confirm your sys files, also svchost can create a sound malafunction if terminated, fix by reinstalling for device manager, hope my resolutions brin sof much joy, you will march down the streets to legalize Ilegal aliens, other wise go have a cup of teat!

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Comment from Andy on 2007-02-23

2007-02-23T18:13:26Z

I have found that if you turn off automatic updates in the security centre you don't get the SVCHOST problem, I realise I now will have to manually check for updates, but who cares, this problem has been really getting on my nerves.

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Comment from bryson on 2007-02-21

2007-02-21T20:36:15Z

Wierd. When we configure a system at our office for a client there is no problem. They get the brand new computer and boot onto their network they get the svchost.exe error. They have an automatic installation routine setup in the login.bat file for symanatec, I'm wondering if something is going on there, but it only seems to be for one specific user, and it's a brand new machine, but this user has had trouble with another notebook before! It only happens on this one client's network and only this user!!

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Comment from hassan on 2007-02-14

2007-02-14T11:44:53Z

antivirus svchost.exe

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Comment from hassan on 2007-02-14

2007-02-14T11:44:22Z

antivirus svchost.exe

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Comment from km on 2007-02-12

2007-02-12T11:03:24Z

Following is what I tried and didn't work:
1. Patches from MS.
2. Looking for the svchost instance causing problems. The one for RPC seemed like an culprit always.
4. Then saw MSWord and Google Toolbar running in SVCHOST. Thought about uninstalling MS Office before I tried this.

What worked for me:
1. I saw mdm.exe intermittently would take up a part of the processor usage. I disabled the mdm.exe using ProcessExplorer and everything is nice and easy. No more trouble.

Please let me know if someone can confirm that suspending MDM.exe worked for you guys.

Regards
KM

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Comment from Alex on 2007-02-10

2007-02-11T04:22:25Z

Leo: I've been meaning to thank you for the hint about Svchost.exe issue on W2K. Now, after having updated my pc to XP, one of the copies of svchost.exe turned back to it's malaware tendences, taking over the 100% of my cpu AGAIN. Microsoft support helped me to hunt and fix this problem: now I pass this through to you all.
Although the following steps maith be a particular case, I hope it helps the same way that helped me.

- log on the pc as administrator

- Download SysInternals Process Explorer and run it
- Identify which one of the svchost copies is causing the issue

-Click on start, and run "msconfig"

- over the "services" tab, click on "hide all microsoft services"

- Disable the rest of services

- click on the "start up" tab

- click on "disable all"

- Reboot the system

- Make sure the svhost.exe is not taking over the 100% of the cpu (for now)

- Run process explorer again

- run "msconfig" again

- Enable one by one the process and services until the problem shows up again. Don forget reboot the pc with every service enabled.

- Once the svchost copy takes the cpu resources again, you've just found the "guilty" service, so scan it or put it on quarantine.

For my case, a process that controls a HP printer spool was the root cause. Once disabled, the problem was solved at last.

Good Luck Riders.... Thanks again LEO.

ALex

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Comment from sally on 2007-02-08

2007-02-08T09:43:39Z

I have the svchost taking from 70 to 90% cpu resources, and I use the task manager to end it and work fine through the session. But lately it's happening all the time. I have the latest Anti virus protection updates from Mcafee, I have the firewall enabled for all my connections. System is xp with sp2 and the update page shows no necessary updates are available for my system. I ran a registry mechanic software to make sure no problems are in the registry. I use the tweaks to speed up user clean up and shutting down. I use Boot vis from Microsoft to speed up system boot. In spite of all this, svchost loads and takes all my CPU time. please any solution?

thanks , sally
me@sallyahmed.com
http://www.sallyahmed.com/

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Comment from Bob on 2007-02-07

2007-02-07T14:53:45Z

Leo, please help with the following annoying problem, related to svchost, that no other 'expert' seems to understand. Since a couple of month svchost started a life of its own scanning all of the ports on my modem/router for days at an end. It did not do this before and takes up CPU-time, is visible in de Zone-Alarm firewall window (no check anymore on in/outgoing processes).
System XP-SP2, firewall, virus scan in place (AVG) and performing several full-system checks without succes. Also hitman-pro brings no relief. How to stop this irratic behavior.
Thanks for your attention, Bob.

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Comment from floatingeagle on 2007-02-04

2007-02-04T11:50:04Z

you can find out what scvhost is running by clicking on start then click on run and type cmd (windows xp) or type command (all versions of windows) then max the window (it will be half screen) and type tasklist /svc and you will see the list of what each item is running and what it is running.

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Comment from Dan on 2007-01-22

2007-01-22T17:55:22Z

Just wanted to get this out.

If you run Symantec products and if you are getting svchost crashing soon after boot with a Generic Host Process error pointing to msi.dll, then I think I might have an hint.

This error was beginning to show up all over campus. Even applying MS's patch KB894391 failed.

It turns out that it is caused by Symantec's setting to "Scan Network Drives" Turn this feature off. The svchost error should vanish on next boot. You may still get the Generic crash once more.

Hope this might help someone, I can't tell you how many hours I spent on this one...

grrrr

dan

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Comment from Snypa on 2007-01-16

2007-01-17T00:02:26Z

When i restart my computer svchost.exe takes up 100% and i cant do nothin, If i am quick enough i can get task manager up and end the programme, after that i have control but i have no sound on games or can play music or films, I have done a defrag, virus scan and now a spyware scan, if this doesnt work any more ideas??

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Comment from Chris Binns on 2007-01-11

2007-01-11T22:54:16Z

I fixed my problem (fingers crossed) by rebuilding the WBEM registry as per http://www.hanselman.com/blog/SvchostexeSucksCPUAndRebuldingTheWMIWBEMRepository.aspx and then also stopping windows automatic update. Even after I rebuilt the WBEM registry I had problems and using the Process Explorer utility I identified Windows Update as grabbing all my CPU. I set this to notify me only and so far so good.

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Comment from JS on 2007-01-10

2007-01-10T17:27:51Z

>>I have had all 3 of my computers exibit this same behavior, and all within the last week. Nothing has changed on the computers except that i used window's update. Upon startup whenever i access the internet, explorer or other, svchost gobbles up my cpu, eventually it releases, but i cannot get anything done for those 5 minutes.

Windows Update (wuauserv) runs svchost.exe (or maybe the other way around) to check your local system and see if any Windows Updates are available and needed. Takes too much time, but that's what it is. Once the check is done, svchost.exe reliquishes its stranglehold on the CPU.

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Comment from Abhishek on 2007-01-08

2007-01-08T13:51:56Z

Leo, you suggest about a possible problem "After you log in, your system automatically reboots in one minute." but do not elaborate on the same. Well, I am facing the issue and the laptop vendor, dell in my case, says that they can't do anything and reformatting is the best solution...Please help!
Thanks
Abhishek

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Comment from Parker on 2007-01-05

2007-01-06T07:24:48Z

I have had all 3 of my computers exibit this same behavior, and all within the last week. Nothing has changed on the computers except that i used window's update. Upon startup whenever i access the internet, explorer or other, svchost gobbles up my cpu, eventually it releases, but i cannot get anything done for those 5 minutes.

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Comment from John Byrd on 2007-01-02

2007-01-02T16:47:12Z

Leo, your original article suggests that there are only 2 possible problems, both related to malware. While some people may be bitten by malware, the WBEM repository hang will definitely crop up with people with clean XP installs. Consider updating your article.

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Comment from Leo Notenboom on 2007-01-02

2007-01-02T16:34:27Z

No one ever said it was the only cause. There are many ways that svchost can exhibit problems - malware is simply the most common.

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Comment from John Byrd on 2007-01-02

2007-01-02T16:32:03Z

It's misleading to suggest that viruses and worms are the only cause of this problem. On a virus and worm-free system, svchost.exe can consume all the CPU if the WBEM registry is corrupted. In this case, it's necessary to stop the winmgmt service, rebuild the WBEM registry, and restart the service. This turned out to be the true problem and solution in my case. See:

http://www.hanselman.com/blog/SvchostexeSucksCPUAndRebuldingTheWMIWBEMRepository.aspx

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Comment from nichael on 2006-12-26

2006-12-26T23:51:51Z

This sure equals what I'm experiencing: 100% CPU utilization. I narriwed it to svchost, axed the one using the most memory, and we're back to normal. Course lots of stuff doesn't work, but it "solved" the problem. BUT my firewall is always on. multiple virus checkers are not finding anything amiss. still puzzled

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Comment from Kris Didymus on 2006-12-17

2006-12-18T07:41:36Z

This article resolved the issues I had with SVCHOST.EXE and is an absolute lifesaver. In my case the problem was caused by a user error. On Friday of last week I shut down my computer because I was having a network problem. The machine began installing Microsoft updates but after half an hour I decided it must have hung and switched off the power. Clearly it hadn't hung (or if it HAD, it hadn't completed the update process) and I ended up with the SVCHOST error as described in this article.

I was about to re-install everything when I happened across this article. Heart-felt thanks to the author. Keep up the good work!

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Comment from Brian on 2006-12-17

2006-12-17T11:56:48Z

Mark Putnam is an idiot by the way. Did he READ the article at all? (Or study English at school?)

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Comment from Brian on 2006-12-17

2006-12-17T11:53:51Z

Check also your Internet connection. A very slow/crap connection can cause a service running under svchost to loop as it waits for replies causing the CPU usuage to peg out.

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Comment from Leo Notenboom on 2006-12-16

2006-12-16T17:49:44Z

Many of the viruses that infect svchost are network borne... make sure to install your OS, and turn on a firewall on the machine *before* connecting to your network. If not, you can be infected frighteningly fast.

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Comment from mark putnam on 2006-12-15

2006-12-16T05:20:26Z

This virus is bazaar; we formatted the whole computer after finding that our service host was corrupted and duplicating. Before formatting the PC we had memory failures so we pulled out that defective ram. After formatting the computer we reinstalled windows and it was there again. After this we bought a serial ATA hard drive, loaded windows and the virus appeared again. It seams as if the virus is not on our network. My guess is this svchost.exe modified my ram or bios and stored it self there. This seams mind blowing but my question is “ IS this Possibel?”

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Comment from Toky on 2006-12-14

2006-12-14T19:45:25Z

I have found this:
[Stolen material removed. Visit this link instead: http://swigartconsulting.blogs.com/tech_blender/2006/07/index.html]

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Comment from Bruce Wagner on 2006-12-12

2006-12-12T17:06:03Z

This is obviously a common problem.

Has ANYONE found the true solution to this problem yet?

I can't find any reference to it on the Symantec site.

Bruce Wagner
http://brucewagner.com

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Comment from Marimizerable on 2006-12-05

2006-12-05T18:11:18Z

Please Leo can I have an answer?
I dont mean to receive any special favours but the fact i have to end up the svchost.exe each time my computer is on just drives me nuts. I am completely obsessed with the windows task icon, checking it every minute to make sure the CPU usage is stable.
Ive heard one million different versions from your computer is dead, completely virus ridden or get rid of your norton and symantec and rely upon windows updates only...
I really dont knw ehat to do, this laptop is brand new and I cant afford to throw it away.
Shall i be more drastic, back up all my data onto a dvd and then reinstall everything. will it get rid of this svchost.exe issue??
I have neevr uninstalled the whole system on my own so I am scared of the aftermath.
Help please.
Thanks.
marianne.

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Comment from Marimizerable on 2006-12-04

2006-12-04T17:47:20Z

Please help.
I am this french teacher working in England who desperately needs her computer working 24/7.
I have a barand new laptop, acer aspire 1800 and since I got the net and downloaded files using bit torrents my computer has been slowed down and crashed a lot. Anyways I have discovered recently I have this svchost.exe issue! it is really frightening,I mean if I follow your instructons and end the process then no more audio soi have to restart eveything...
Now I have runned virus scans, i do have norton, firewall+ symantec protections and no viruses.
ive been told today the system might be permanently damaged because of svchost.exe
So please what am i to do?get rid of svhost.exe each time I start my computer or clean the whole thing up???
itis quite distressing not to know what to do....
Hope I will get someanswers, any help is more than welcome, thanks ever so much!

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Comment from Alex on 2006-12-03

2006-12-04T00:12:25Z

30 or so seconds before i am sending this, i ended SVCHOST.EXE in the processtree from the task manager. Nothing happend. Nothing is happening. As in eveything is fine. I am starting to wonder the importance of SVCHOST. I run on a dell inspiron 8600 Widescreen Microsoft Windows XP pro.

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Comment from Steve on 2006-12-02

2006-12-03T05:53:03Z

I had that problem in my son's laptop and it was a trojan/malware. Antivirus s/w didn't find it because it is not a virus. Best guess was a subscription service he signed up for, decided not to use, and didnot pay for. Ba$tard$. I had to run in Safe mode with a anit-malware s/w downloaded from another PC and run on a memory stick. I recommendation is try other anti-malware s/w's, maybe even several, to be SURE it is not a bug. I was running fully updated Norton and it did not find it. Adaware caught several, but not all. Avast found more, but not all.
Good luck. Now i am getting the svchost crashes related to my VPN tunnel (Cisco)...

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Comment from muqbnol on 2006-11-28

2006-11-29T02:07:18Z

Oh and in addition...don't know if this matters or not but I'm runnin at 1.3 ghz pentium III Windows XP service pack 2 all required updates should be installed unless some new ones have come about in the last month...I also recently attempted to use the firewall supplied by windows,(it was proviously disabled by my old AV software), this was unsuccessful...I will update with exact wording of the code if ever get my computer running long enough to find out...

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