1.    15 Mar 2017 #1
    Join Date : Mar 2017
    Posts : 3
    windows 10

    svchost(netsvcs) utilizing 25% of CPU def_update looping 1.237.1259.0


    Hi team,
    I am running windows 10, version 1067.
    For past 1h my cpu is running high, and i have narrowed down issue to proces:
    svchost(netsvcs) pid 576 to be utilizing cpu.
    Click image for larger version. 

Name:	win-update2.PNG 
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ID:	125207
    I've noticed that on windows update page, windows is trying to download
    "Definition Update for Windows Defender - KB2267602 (Definition 1.237.1259.0)." and it is stuck in a loop there, trying to download and failing.
    Click image for larger version. 

Name:	win-update1.PNG 
Views:	2 
Size:	29.3 KB 
ID:	125209
    I tried rebooting notebook, but as soon as it boots up cpu usage is high again.
    Windows defender seem to be updated with definitions mentioned above 1.237.1259.0
    Click image for larger version. 

Name:	win-update3.PNG 
Views:	2 
Size:	128.8 KB 
ID:	125212

    dump files for svchost.exe are ~200MB so can't really upload them here, but if anyone would find it helpful i will put them on dropbox.

    Thanks
      My ComputerSystem Spec
  2.    15 Mar 2017 #2
    Join Date : Mar 2017
    Posts : 3
    windows 10
    Thread Starter

    only workaround is to disable windows update service, stopping it doesn't make a difference as it starts again on its own.
      My ComputerSystem Spec
  3.    15 Mar 2017 #3
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 4,117
    Windows 10 Pro Build 1703

    Welcome to the TenForums @xrefa

    Potentially your update process maybe having some difficulties. This months updates were very large and took over an hour on one of my machines. Downloads, stop, disk usage up, pattern repeats.I would do this and then just let it run. It could take a little time.

    Windows key + S, search bar appears, type troubleshooting into search bar, troubleshooting appears at top. Click it, window opens, lower right side "Fix problems with Windows Update", click. Window opens, click on “advance”, click on Run as administrator, click “Next”. Should run clean. If not run again.


    Ken
      My ComputerSystem Spec
  4.    15 Mar 2017 #4
    Join Date : Mar 2017
    Posts : 3
    windows 10
    Thread Starter

    Hi Ken,

    your hint solve the problem!!! Previous update files were removed and new ones were downloaded afterwards no issues since then.


    Windows key + S, search bar appears, type troubleshooting into search bar, troubleshooting appears at top. Click it, window opens, lower right side "Fix problems with Windows Update", click. Window opens, click on “advance”, click on Run as administrator, click “Next”. Should run clean. If not run again.
      My ComputerSystem Spec
  5.    15 Mar 2017 #5
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 4,117
    Windows 10 Pro Build 1703

    Thanks for posting back.
      My ComputerSystem Spec

 


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