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Windows 7: svchost.exe (netserv) high cpu usage

09 Aug 2016   #1
LouG

 
svchost.exe (netserv) high cpu usage

I have a Dell Inspiron 1545 running windows 7, 2.16Hgz, 3.0 gigs memory, google chrome browser.

Recently the laptop began to slow down quite a bit. Looked at Start Manager and CPU usage was 100%.

I then looked at the Resource Monitor and saw that svchost.exe (netserv) fluctuates from 70% to 98% when nothing is running.

Rebooting lowers the CPU usage but after a while it goes up again.

I found the website "Full Malware Scan and Removal Guide" and followed all instructions and no good results.

Hope someone here would help me out with this problem.

Thank you in advance.

Lou


My System SpecsSystem Spec
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09 Aug 2016   #2
townsbg

Windows 7 pro 64-bit
 
 

Considering that this is patch Tuesday I bet that this is windows updating itself. "svchost.exe (netsvcs)" using up my net speed - Download - Windows 7
My System SpecsSystem Spec
10 Aug 2016   #3
LouG

 

That could be the reason for this time but it happens other days of the week.

I have already set to let me know when updates are available but to let me decide when to download and update. Should I set to never check and do the checking myself? This laptop is 98% used by my wife to play games installed in the hard drive.

I will also follow the instructions you attached to rename gmgr.dll and see if that helps.

Thanks.
My System SpecsSystem Spec
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10 Aug 2016   #4
LouG

 

UPDATE: I don't have gmgr.dll in any folders.
Back to square 1.
My System SpecsSystem Spec
10 Aug 2016   #5
townsbg

Windows 7 pro 64-bit
 
 

I was referring you to that thread because it references Windows update. There could be other causes such as malware. You should run a scan with your antivirus and malwareabytes. As for not finding that file it started with a q not a g. I don't recommend renaming that file at this time but to run virus scans.
My System SpecsSystem Spec
10 Aug 2016   #6
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
If you have windows update issues that will cause the high svchost to go nuts
Make sure these updates are installed if not manually install them
KB3020369 & KB3172605

When manually installing updates you need to switch your update settings to Never check for updates and restart the machine first.
My System SpecsSystem Spec
10 Aug 2016   #7
LouG

 

Just finished running Malware Anti-Malware and Norton Security full scan. No issues found on either.

A few days ago I ran RKill, TDSS Killer, CCleaner, Rogue Killer, ADwCleaner, and JRT. Ran some of these in safe mode. No issues found.

I already turned off windows auto update. Will check on the two mentioned updates and will follow up as you have recommend.

Won't rename the qmqr.dll file.

Thank you guys. I am at a loss. Don't know what else to do.
My System SpecsSystem Spec
10 Aug 2016   #8
LouG

 

KB3020369 was installed 2/5/16. I don't have KB3172605. Changed Windows update to never check for updates and rebooted the laptop.

Want to manually update the second KB and started the Checking for Updates function.
It has now been running for over 1 1/2 hrs.

CPU utilization is at 100% with svchost.exe (network serv) taking around 95%.

I am going to let this checking for updates run over night and see if it ends by morning.
My System SpecsSystem Spec
10 Aug 2016   #9
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi make sure the windows update service is not running.
Click Start and type in the search box
services
hit the enter key.
All the way at the bottom.
Double click it to change the setting to stop the service.
My System SpecsSystem Spec
11 Aug 2016   #10
LouG

 

I have Update set at Never Check for Updates.

Window update ran for hours. I stopped the Service and went back to the Update window. It showed that Windows was up to date but I don't KB3172605.

CPU utilization was between 2% and 8%. GREAT!!

Rebooted and the service started again. Do I have to stop it every time?

By the way, how do I log off this site? Probably staring me in the face but don't see it.

Thanks for all the help you both have given me.

Lou
My System SpecsSystem Spec
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 svchost.exe (netserv) high cpu usage




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