svchost.exe (netserv) high cpu usage

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  1. Posts : 8
    64bit
       #1

    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 Computer


  2. Posts : 1,760
    Windows 8.1 Industry Pro x64
       #2

    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 Computers


  3. Posts : 8
    64bit
    Thread Starter
       #3

    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 Computer


  4. Posts : 8
    64bit
    Thread Starter
       #4

    UPDATE: I don't have gmgr.dll in any folders.
    Back to square 1.
      My Computer


  5. Posts : 1,760
    Windows 8.1 Industry Pro x64
       #5

    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 Computers


  6. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #6

    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 Computer


  7. Posts : 8
    64bit
    Thread Starter
       #7

    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 Computer


  8. Posts : 8
    64bit
    Thread Starter
       #8

    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 Computer


  9. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #9

    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 Computer


  10. Posts : 8
    64bit
    Thread Starter
       #10

    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 Computer


 
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