Windows 8 and 8.1 Forums


Defender Updates. Anyone else seeing multiple failures.

  1. #1


    Posts : 562
    W10 x64 pro and W8.1 x86

    Defender Updates. Anyone else seeing multiple failures.


    I've recently been getting failures on my Defender updates. When Windows checks it is often showing two updates as available and it seems it then goes on to try and install both together.

    I should point out that I have Windows to check only for updates and for Defender I have a 7.30am task set to install the definitions. This has worked well for months but suddenly something seems different with the updates. I often two Defender updates waiting. The Event Viewer log shows the timeline which happens all at once.

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  2. #2



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    Are you sync'd to another PC? I have noticed this happens once in a while when I have both my Win8.1 desktop & Win10 laptop online with the internet. But only once in a while.
      My System SpecsSystem Spec

  3. #3


    Posts : 562
    W10 x64 pro and W8.1 x86


    No, just this PC. Its not linked or synced to anything.

    I can confirm (having proved by rolling back to an image made on the 20th) that Windows Update has shown these same two updates as available but now has installed both successfully.

    Edit... so Microsoft seem to be saying both these updates are valid today. Or should MS have removed one from the pipeline ?

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      My System SpecsSystem Spec

  4. #4



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    It could be that one updates the virus definition(a couple of times a day) and the other is the spyware definition(not so often)
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      My System SpecsSystem Spec

  5. #5


    Posts : 562
    W10 x64 pro and W8.1 x86


    Ah, I hadn't thought of that. but yes, you could well be on to something there. That still leaves the reason why it glitches when installing though. I'll keep a more vigilant look out and see what appears in the update Window each morning and to try and spot any double occurrences.
      My System SpecsSystem Spec

  6. #6



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    You can also see in it in reliability history
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      My System SpecsSystem Spec

  7. #7


    Posts : 562
    W10 x64 pro and W8.1 x86


    Thanks, I never thought to look there tbh.
      My System SpecsSystem Spec

  8. #8


    Posts : 562
    W10 x64 pro and W8.1 x86


    Well its happened again this morning. Windows Update 1.199.666.0 and 1.199.669.0 are both shown as 'important'. One has failed.

    Something has changed......
      My System SpecsSystem Spec

  9. #9



    Trying to Sith things out
    Bamberg Germany
    Posts : 2,290
    Windows 10 Pro 64 bit


    Checked this morning and got this
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    clicked install but it didn't install anything but showed this
    Click image for larger version

    Checked a second time and it showed this
    Click image for larger version

    clicked install and it showed this again
    Click image for larger version

    Checked a third time and it showed no updates available, go figure.
      My System SpecsSystem Spec

  10. #10


    Posts : 562
    W10 x64 pro and W8.1 x86


    That is very weird.

    I've noticed something though. My basic set up is for Windows Update to notify only and as a result of this I have a Defender update task that I created in task scheduler to allow Defender to always update automatically. This has worked well until recently.

    So the scenario at the moment with these problems is that Windows Update checks and the Defender Update/s show as waiting. Come 7:30am the tasks runs and installs the latest update leaving the one (or two as in this case) still showing in the Windows Update panel. That is how it has always been... and come tomorrow the waiting updates get replaced with tomorrows latest and so on.

    I don't know what to make of yours Its very odd.
      My System SpecsSystem Spec

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Defender Updates. Anyone else seeing multiple failures.
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