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Windows 7: svchost.exe taking CPU to 100%

26 Jan 2016   #1
nithig

Windows 7 Pro 64bit SP1
 
 
svchost.exe taking CPU to 100%

Suddenly this system, which was operating ok, has started to become very hot. I traced this heating to high CPU usage and further to an over-active svchost.exe (screen shot below).

I'm not very technical but from reading online I gather this may be associated with Microsoft Updates (Updates appears to be up to date). There was a hotfix offered by Microsoft but it concerned Windows Framework 3.0 (can't recall update number) but I checked thoroughly and couldn't find any such listing or update item.

So I'm rather stuck.
svchost is of course a legitimate and required Microsoft component but I find this overheating and taking up of all the CPU disconcerting and also it slows every other activity.

Any suggestions in as plain English as you can manage ... would be very helpful.




Attached Thumbnails
svchost.exe taking CPU to 100%-capture.jpg  
My System SpecsSystem Spec
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26 Jan 2016   #2
UsernameIssues

W7 Pro SP1 64bit
 
 

Manually install this update:
https://support.microsoft.com/en-us/kb/3112343

If that does not fix the CPU usage, the try these steps:
Windows Update - Reset
My System SpecsSystem Spec
26 Jan 2016   #3
nithig

Windows 7 Pro 64bit SP1
 
 

Thank you UsernameIssues.
D/loaded that stand alone update however when double clicked it starts the "searching for updates on this computer" and this has been running for some time now with nothing else occurring.
Is this 'searching for updates' what is meant to be achieved with the d/load KB3112343?
My System SpecsSystem Spec
.

26 Jan 2016   #4
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Not at all sure that update is more related to monitoring win-10 upgrades than anything :/
Use Clean boot,
Troubleshoot Application Conflicts by Performing a Clean Startup
Click Start and type in the search box,
msconfig
Click on the suggestion on top or hit the Enter key,
Go to the Startup section and take some screen shots for a complete list,
Go to the Services section and on the bottom left Check the box to Hide All Microsoft services,
Repeat the screen shots,
See the links above my signature on how to take and upload screen shots here,
Cheers.
My System SpecsSystem Spec
26 Jan 2016   #5
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by nithig View Post
Thank you UsernameIssues.
D/loaded that stand alone update however when double clicked it starts the "searching for updates on this computer" and this has been running for some time now with nothing else occurring.
Is this 'searching for updates' what is meant to be achieved with the d/load KB3112343?
The "searching for updates" is part of the installation. It is just checking to see that this update is needed/applicable. It should not take long to do that search. It is probably best to reset the Windows Update process using the tutorial that I linked to... then try installing that KB again.
My System SpecsSystem Spec
26 Jan 2016   #6
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by ThrashZone View Post
Hi,
Not at all sure that update is more related to monitoring win-10 upgrades than anything :/
KB3112343 contains this fix:
Quote:
Installing and searching for updates is slow and high CPU usage occurs in Windows 7...
My System SpecsSystem Spec
26 Jan 2016   #7
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Quote:
Cause


This issue occurs because memory on the client computer is fragmented when Windows Update agent scans the client computer in System Center Configuration Manager 2007 R2.
Yea I don't even see how memory gets fragmented personally
This assumes someone never shuts down or something and only uses hibernation :/
My System SpecsSystem Spec
26 Jan 2016   #8
nithig

Windows 7 Pro 64bit SP1
 
 

Quote:
Yea I don't even see how memory gets fragmented personally
This assumes someone never shuts down or something and only uses hibernation :/
hmmm... yes, I tend to leave the laptop in "Sleep" mode rather than full shut down.

Restarted "checking for updates" and again it is still running without result.


Attached Images
svchost.exe taking CPU to 100%-startup.jpg svchost.exe taking CPU to 100%-services1.jpg svchost.exe taking CPU to 100%-services2.jpg svchost.exe taking CPU to 100%-services3.jpg 
My System SpecsSystem Spec
26 Jan 2016   #9
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Sometimes restarting is not good enough completely shut down.
My System SpecsSystem Spec
26 Jan 2016   #10
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by nithig View Post
Quote:
Yea I don't even see how memory gets fragmented personally
This assumes someone never shuts down or something and only uses hibernation :/
hmmm... yes, I tend to leave the laptop in "Sleep" mode rather than full shut down.

Restarted "checking for updates" and again it is still running without result.
You are probably not running the System Center Configuration Manager 2007 R2 client on your computer - so I would not worry about how often you restart.

The "Cause" section that ThrashZone quoted applies to the fixes that were added to the Windows Update Client with KB3112343. The fix that we are interested in came from KB3102810 and is included in KB3112343.


We leave thousands of work computers on 24/7. If it were not for updates, these computers would never reboot. The computers have work to do... data to gather. Those work computer run the System Center Configuration Manager 2012 R2 client.
My System SpecsSystem Spec
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