Windows 10: Windows defender update fails.

Discus and support Windows defender update fails. in Windows 10 Updates and Activation to solve the problem; I got error like this. There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or... Discussion in 'Windows 10 Updates and Activation' started by lvgandhi, Dec 11, 2017.

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  1. LVGANDHI
    lvgandhi Win User

    Windows defender update fails.


    I got error like this.
    There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:
    . Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.259.206.0) - Error 0x80070643
    I searched in the net. I uninstalled malwarebytes and ran sfc /scannow. It did not show any error. I deletedall files and folders in windows/softwaredistribution/download.
    Then ran update. Still I get same error.
    what to do?

    :)
     
    lvgandhi, Dec 11, 2017
    #1
  2. DAVIDMONKHOUSE
    DavidMonkhouse Win User

    Norton and a Windows Defender that will not switch off

    I have installed Norton Security but still get Windows defender updates that fail. Windows Defender says the PC is not being monitored because the apps service has stopped. I initially installed Norton with Defender running and got the failed updates
    message. I then removed Norton, switched off Defender and reinstalled Norton and still get the failed updates.
     
    DavidMonkhouse, Dec 11, 2017
    #2
  3. SUBHABRATASOWMONDAL
    SubhabrataSowmondal Win User
    windows defender is not updating

    while updating windows defender everytime it fails to download update.and it doesnot show any error code.just shows "windows defender failed to update".
     
    SubhabrataSowmondal, Dec 11, 2017
    #3
  4. THRASIVOULOS
    Thrasivoulos Win User

    Windows defender update fails.

    I have exactly the same problem. Yesterday I did a clean install on Windows 10. Updated everything fine and today I have this error. I got some other updates with no problem so I think its a corrupted definitions update from Microsoft
     
    Thrasivoulos, Dec 11, 2017
    #4
  5. ANTJAC
    AntJac Win User
    I have the same issue.
     
    AntJac, Dec 11, 2017
    #5
  6. PACMANFAN
    pacmanfan Win User
    I'm getting it this morning on a "brand new" Win 10 Pro refurb system I'm setting up. None of the tricks I've tried that used to work for this error, are working this time.
     
    pacmanfan, Dec 11, 2017
    #6
  7. HURRICANE28
    hurricane28 Win User
    Same issue here dudes, seems like MS screwed up big this time lol.

    Tried all things i can think of but nothing works.. I guess its time for Windows to make an update to make Windows update work again lmao.
     
    hurricane28, Dec 11, 2017
    #7
  8. ANTJAC
    AntJac Win User

    Windows defender update fails.

    Strange. There's another definition update that installed on my Dad's pc fine so I checked and there is one ending .218 I think. That won't install either. Anybody else having that?
     
    AntJac, Dec 11, 2017
    #8
  9. ROSE W
    Rose W Win User
    This 'didn't install-try again later' appeared in my updating window this morning. The current version is 1.259.156 the version that is supposed to install is 1.259.206. This stand alone file is available at the MajorGeeks
    Download Windows Defender Definition Updates - MajorGeeks
    I downloaded but hesitated to install and now I see opinion that it could be a MS screwup so I'll just wait.
     
    Rose W, Dec 11, 2017
    #9
  10. ANTJAC
    AntJac Win User
    Won't install definition update ending .218 either
     
    AntJac, Dec 11, 2017
    #10
  11. THRASIVOULOS
    Thrasivoulos Win User
    I just tried windows update again and there are some new updates and definition is now 1.259.218.0. Ill tell u if its fixed after I am done with the update
     
    Thrasivoulos, Dec 11, 2017
    #11
  12. ANTJAC
    AntJac Win User
    Nice please do. Won't install update .218 or the previous one
     
    AntJac, Dec 11, 2017
    #12
  13. SCOTTYBOY99
    Scottyboy99 Win User

    Windows defender update fails.

    Same problems on one out of my two machines. Looks like the update definitions are working for some and not others. Nonetheless it’s pretty widespread it seems so I’d say yet another major Microsoft screw up

    for everyone having this problem, let’s all hit them hard on Twitter @Microsofthelps and try to get this on their radar

    i see over on their Microsoft answers forum there is a fair amount of noise about this too
     
    Scottyboy99, Dec 11, 2017
    #13
  14. THRASIVOULOS
    Thrasivoulos Win User
    there was 4-5 major updates that installed ok. now I have same problem with definitions 1.259.221.0 *Sad
     
    Thrasivoulos, Dec 11, 2017
    #14
  15. THRASIVOULOS
    Thrasivoulos Win User
    funny thing is that few secs ago I had definitions ending to .218
     
    Thrasivoulos, Dec 11, 2017
    #15
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