1.    29 Jul 2017 #1
    Join Date : Dec 2016
    Earth, Milky Way
    Posts : 17
    Windows 10 Home (Creators Update)

    Windows Update is conflicting with Windows Defender's auto-update...


    I noticed that Windows Update tries to install KB2267602, even though Defender already installed that particular version of the update, resulting in Windows Update throwing an error.

    Windows Update output:
    Code:
    Definition Update for Windows Defender - KB2267602 (Definition 1.249.380.0) - Error 0x80070643

    Info from Defender's "Protection updates" page:
    Code:
    Threat definition version: 1.249.380.0
    Version created on: 2:48:19 PM : Friday, July 28, 2017
    Last Update: 2:48:19 PM : Friday, July 28, 2017

    How do I disable Defender's built-in auto-update so that Windows Update can install it without throwing that error?
      My ComputerSystem Spec
  2.    31 Jul 2017 #2
    Join Date : Apr 2015
    Posts : 261
    Windows 10 Home x64 and Pro x86

    Stargate,

    1. Every Windows defender definitions update is called KB2267602.
    2. Windows defender uses Windows update to do its updates automatically.
    3. As you already know, Windows defender also allows you to update through the Windows defender UI.


    Whatever the cause of your current problem, it is not a clash between Windows & Windows defender running updates independently [there is no such thing as Defender's built-in auto-update].

    Denis
      My ComputerSystem Spec
  3.    01 Aug 2017 #3
    Join Date : Dec 2016
    Earth, Milky Way
    Posts : 17
    Windows 10 Home (Creators Update)
    Thread Starter

    I just now tried by setting my connection as metered (to stop most updates), then I checked for updates. It said that a new definition update (1.249.505.0) was available, but when I disabled the metered connection setting to allow it to download, it went all the way through the download and install, reaching 100%, but then I got the 0x80070643 error again. So I went into the Defender app, clicked check for updates, and got this:

    Code:
    Error code: -2147023293
    Error description: Fatal error during installation
    How do I fix this? I checked and 0x80070643 in hex is equivalent to -2147023293 in 32-bit signed integer format, so it's the same error code, just in a different format. All the other Windows updates work fine, it's just the KB2267602 updates that throw this error.

    I found someone else having the same problem: https://answers.microsoft.com/en-us/...e-6f7b80755cb5. I followed the link on page 9, downloaded and installed the updated definitions manually (1.249.505.0), and checked in the Defender app. It says it's up to date, but Windows Update still tries to download and install the version I just installed, resulting in the above error.
      My ComputerSystem Spec

 


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