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  1.    15 Nov 2015 #1
    Join Date : Aug 2015
    Posts : 8
    Windows 10

    Defender won't update


    Defender won't update its virus definition file. It tries, and the green bar gets almost to the end then stops. After quite a while, the update fails with an error message saying that the update failed. This has been going on for a week or two! Any ideas?
      My ComputerSystem Spec
  2.    15 Nov 2015 #2
    Join Date : May 2015
    Posts : 442
    Redstone_Four

    I rarely pass by Defender to get virus and spyware updates. Did you try passing by Windows Update?
      My ComputerSystem Spec
  3.    15 Nov 2015 #3
    Join Date : Aug 2015
    Posts : 8
    Windows 10
    Thread Starter

    Quote Originally Posted by MikeMecanic View Post
    I rarely pass by Defender to get virus and spyware updates. Did you try passing by Windows Update?
    Yes, auto and manual (forced) updates of Defender both fail.
      My ComputerSystem Spec
  4.    16 Nov 2015 #4
    Join Date : May 2015
    Posts : 442
    Redstone_Four

    Quote Originally Posted by KenOC View Post
    Yes, auto and manual (forced) updates of Defender both fail.
    Never got an issue with Defender update but got many issues a few weeks ago with Windows Update. Made a clean install and my update problems disappear.
      My ComputerSystem Spec
  5.    16 Nov 2015 #5
    Join Date : Jul 2014
    Serbia
    Posts : 10,614
    W10 Insider + Linux

    Quote Originally Posted by KenOC View Post
    Defender won't update its virus definition file. It tries, and the green bar gets almost to the end then stops. After quite a while, the update fails with an error message saying that the update failed. This has been going on for a week or two! Any ideas?
    Is that thru regular WU or straight from WD ?
      My ComputersSystem Spec
  6.    16 Nov 2015 #6
    Join Date : Apr 2015
    Posts : 12,942
    W10Prox64

    Please have a read of this post, and see if it helps you at all.
      My ComputerSystem Spec
  7.    16 Nov 2015 #7
    Join Date : Aug 2015
    Posts : 8
    Windows 10
    Thread Starter

    Quote Originally Posted by CountMike View Post
    Is that thru regular WU or straight from WD ?
    Both. W10 Settings merely tells me installs have failed, when I do it from Defender I can watch them fail.
      My ComputerSystem Spec
  8.    16 Nov 2015 #8
    Join Date : Jul 2014
    Serbia
    Posts : 10,614
    W10 Insider + Linux

    Quote Originally Posted by KenOC View Post
    Both. W10 Settings merely tells me installs have failed, when I do it from Defender I can watch them fail.
    I don't know why is that happening but you can try downloading those updates from here: Download Windows Defender Definition Updates - MajorGeeks and also directly from MS and see if that helps.
      My ComputersSystem Spec
  9.    16 Nov 2015 #9
    Join Date : Aug 2015
    Posts : 8
    Windows 10
    Thread Starter

    Quote Originally Posted by CountMike View Post
    I don't know why is that happening but you can try downloading those updates from here: Download Windows Defender Definition Updates - MajorGeeks and also directly from MS and see if that helps.
    I downloaded the latest definition file from MS and ran it -- it installed fine and my Defender now shows as up to date. Another person around here reported that after he did this, auto updates worked again. Hope I have the same experience!
      My ComputerSystem Spec
  10.    16 Nov 2015 #10
    Join Date : Jul 2014
    Serbia
    Posts : 10,614
    W10 Insider + Linux

    Quote Originally Posted by KenOC View Post
    I downloaded the latest definition file from MS and ran it -- it installed fine and my Defender now shows as up to date. Another person around here reported that after he did this, auto updates worked again. Hope I have the same experience!
    Let's hope so, defender has updates sometimes 5 times a day,
      My ComputersSystem Spec

 
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