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Win 7 updates not happening, svchost using 30% cpu, fan in overdrive


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#1 Expert Novice

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Posted 18 April 2016 - 02:19 PM

Hi there,

 

I've been experiencing an ongoing issue on my laptop for some time but had been tolerating the high cpu drain from svchost.exe and cooling fan working overtime. Recently I decided I'd return the laptop to its factory state and hopefully cure the problem but have discovered that if I turn off Windows updates the problem goes away. It also transpires that apart from new virus definitions for Microsoft Security Essentials my laptop has not recieved any updates  since July last year, the last being KB3079904 which was installed on 23.7.2015. If I turn on updates and tell it to seach for new updates it appears to be searching but nothing is found and it just keeps searching indefinitely while svchost.exe resumes taking 25/30% cpu which causes the fan to atart working overtime again. When I turn off updates and restart the machine all is good, apart from having a severely un-updated system.

 

I've read that this behaviour may well be a result of Microsoft trying to encourage Windows 7 users to migrate to Windows 10 which is something I'd prefer to avoid. If that's the case I guess a factory reset won't make any difference so I need to try fixing my updates before deciding how to proceed further.

So far I've tried the relevant steps given at https://www.winhelp.us/reinstall-windows-update.html and manually searching and installing update KB3145739 which seemed to help similar issues detailed at http://www.bleepingcomputer.com/forums/t/611172/windows-update/ but to no avail. I'm still left with high cpu use, a racing fan and no updates. I tried isolating the service causing the svchost.exe cpu drain according to the instructions given at https://blogs.technet.microsoft.com/askperf/2009/04/10/prf-high-cpu-svchost-exe/ but the resulting message in the command prompt screen was ''OpenService failed 5: Access is denied''.

 

Using Sysinternals Process Explorer I also see there are several processes with the comment ''Error opening process'' or ''The system cannot find the file specified'' showing in the path column. These processes are smss.exe, csrss.exe, wininit.exe, sevices.exe, WmiPrvSE.exe, dllhost.exe, audiodg.exe, Seaport.exe, WLIDSVC.EXE, WLIDSVCM.EXE, CVHSVC.EXE, an instance of svchost.exe, HpSupportSolutionsFrameworkService.exe, IAStorDatamgrSvc.exe, lsm.exe, another instance of csrss.exe, winlogon.exe, GoogleCrashHandler.exe, Google CrashHandler64.exe and SynTPHelper.exe. I don't know whether these are related to the update issue or evidence of some other problem I need to address but it doesn't look good.

Any advice on how to proceed with further diagnosis and repair will be most appreciated.

 

Thanks

 

David



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#2 JohnC_21

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Posted 18 April 2016 - 02:37 PM

The things I can suggest is to do a sfc /scannow scan to check for missing or corrupt system files. Install IE11 if you do not have it installed.

 

Run the Update Troubleshooter

Download the Run the Update Readiness Tool for Windows 7

Download the latest Windows Update Agent

Download the latest Windows Update Client   March 2016

Download KB3102810  If you have not done so already. You may need to reboot first before installing this update.

 

http://www.bleepingcomputer.com/forums/t/611007/svchostexe-using-50-cpu/



#3 Wallak

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Posted 18 April 2016 - 03:03 PM

Hi there, I experienced the same problem over an old customer's PC with only 2GB RAM and Core 2 Duo Processor, I just had to update Windows Update Agent (you can get it at Microsoft's site, they corrected it on 3.0 version)

 

Hope you can solve it.

 

Best regards.


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#4 Expert Novice

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Posted 18 April 2016 - 03:03 PM

The things I can suggest is to do a sfc /scannow scan to check for missing or corrupt system files. Install IE11 if you do not have it installed.

 

Run the Update Troubleshooter

Download the Run the Update Readiness Tool for Windows 7

Download the latest Windows Update Agent

Download the latest Windows Update Client   March 2016

Download KB3102810  If you have not done so already. You may need to reboot first before installing this update.

 

http://www.bleepingcomputer.com/forums/t/611007/svchostexe-using-50-cpu/

Hi John, thanks for replying so quickly.

I've already tried the Update Troubleshooter and Update Readiness Tool. They were suggested on one of the pages I mentioned above. The Update Trouble shooter said it had fixed a couple of issues but it hasn't made any difference. I'm just about to try installing the latest Windows update Agent so will see how that goes and post back as soon as I can.

 

David



#5 Expert Novice

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Posted 18 April 2016 - 03:17 PM

Hi there, I experienced the same problem over an old customer's PC with only 2GB RAM and Core 2 Duo Processor, I just had to update Windows Update Agent (you can get it at Microsoft's site, they corrected it on 3.0 version)

 

Hope you can solve it.

 

Best regards.

 

Ok thanks. Hopefully the new Update Agent will sort it.

 

I should have mentioned so FYI this is a Core i5 processor with 4GBRAM.

 

Will apply the new agent now.

 

David.



#6 Expert Novice

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Posted 18 April 2016 - 03:37 PM

I installed the latest Update Agent rebooted and began a search for new updates. Svchost is once again consuming 25-30% cpu.

I'm now running sfc scan so will post up the results of that when it finishes.

 

David



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Posted 18 April 2016 - 04:01 PM

Here are the results of the sfc scan...

 

Microsoft Windows [Version 6.1.7601]
Copyright © 2009 Microsoft Corporation.  All rights reserved.

C:\Windows\system32>sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection found corrupt files but was unable to fix some of th
em.

 

Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example
C:\Windows\Logs\CBS\CBS.log

C:\Windows\system32>

 

I tried to open the CBS.log so I could lost it here but access was denied.

 

I the time it's taken to do the scan svchost.exe has ceased hogging my cpu and the search for new updates has revealed a long list waiting to be installed.

Some good progress here so many thanks so far. I'm wondering whether I should just go ahead and install all these updates or are there likely to be any I'd be best avoiding? There are 79 altogether so I can't list them all individually but KB3042058 seems to be the oldest. Are there any notorious ones I should avoid?



#8 Wallak

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Posted 18 April 2016 - 04:15 PM

And tried also to update the client?

 

http://www.microsoft.com/downloads/details.aspx?FamilyId=fcd6bf5d-f004-4ca3-aa7e-1de462b91dd0 (for 32 bit)

 

http://www.microsoft.com/downloads/details.aspx?FamilyId=4fe566bd-31b1-4413-8c4c-412b52533669 (for 64 bit)

 

Normally it should be solved with WU Agent or with WU Client (or maybe both at same time), other people talked about disabling IPv6 and things that have never been proven to be the cause ... but ...

 

Check WU Client and tell us.


Edited by Wallak, 18 April 2016 - 04:15 PM.

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#9 Expert Novice

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Posted 18 April 2016 - 04:21 PM

I didn't try the new client yet and it's getting late here so I'm going to have to call it a night. Things seem to be working a lot better now though. I just need to know which of these updates to avoid, if any. I'll try the new client in the morning.



#10 Expert Novice

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Posted 19 April 2016 - 03:12 AM

Ok, just a quick update...  I decided to delay installing the 79 updates until I installed the new update client and restarted so I had to search again for available updates. Svchost.exe was still consuming the same amount of CPU so the new client hasn't seemed to make much difference. The best improvement was last night after installing the latest update agent. So I still get high CPU usage while searching but then it slows to normal levels. I'm currently downloading the available updates and will be installing them later. Will get a chance to monitor things at more length later today but big thanks for all the helpful input so far. At least I'm getting updates again now.



#11 Wallak

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Posted 19 April 2016 - 04:03 AM

Maybe you will receive the 'right' update to solve that known issue. In my case, just with th WUA solved and started to receive all the updates (before it could be 1000 hours and no way to receive anything). Now customer receives periodically all the normal updates and without extra charge of memory or CPU.

 

The possitive is that you receive the updates, so, let's see if with one of them, all remains at the normal level.

 

By other hand, try to uncheck IPv6 protocol on the TCP parameters, people reported that, even it sounds silly or stupid, for some of them solved the problem. One more thing, your network card is configured by default (by own windows driver) or manufacturer's driver? it is one more reported cause ...

 

Anyway, the reasons are not clear or defined, it is known that it happens on some environment but, no way to clearly point to the right cause.

 

Best regards.


Edited by Wallak, 19 April 2016 - 04:04 AM.

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#12 Expert Novice

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Posted 19 April 2016 - 03:05 PM

The machine has been running satisfactorily all day today and would seem to have been repaired, at least as far as the update/CPU issue goes. I installed 78 updates all in one go this morning and another 5 that came up in a subsequent search. I keep being offered the Windows 10 'upgrade' which is always hidden at the bottom of the list so I just need to make sure I avoid that and all should be well. I still get fairly high CPU use from a combination of two of three processes when searching for updates but the machine returns to a happy idle between 1-5% once the update process is finished as opposed to before where it was a constant 25-30%. So I have a debt of gratitude to repay to all who've helped point me in the right direction.

 

Installing the new update agent seems to have been the thing that made the difference for me. I haven't tried changing anything to do with ipv6 as it as the new agent seems to have fixed things to my satisfaction for now.

I still have the issue of the various processes with start-up errors  but I can make a new post to address these in due course. For now the machine is working better than it has in a long time so thanks Bleeping Computer. I feel a donation to the cause coming on.



#13 Wallak

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Posted 19 April 2016 - 04:08 PM

Great news, happy to hear that.

 

Hope everything goes fine in advance.

 

Best regards.


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