KB4601382 keeps giving me 0x80070003  

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  1. Posts : 3

    Successful update,
    problem solved!

    Thank You so much!
      My Computer

  2. Posts : 850
    Win 10


    Glad to hear.

    Have a nice weekend.

    Take care and stay safe.

    Friendly greetings
      My Computer

  3. Posts : 199
    Windows 10 Home
    Thread Starter

    I can NOT believe this, today I woke up and suddenly my main computer is having this error in Windows Update:

    It is apparently something about net framework, I've used an official Windows tool to repair it, but nothing, same error appears. What is wrong with WU lately?

    First that laptop, now my main computer...
      My Computer

  4. Posts : 850
    Win 10

    The problem is with installing the "Security Intelligence Update for Microsoft Defender Antivirus" update, right?

    Open the notepad and then copy and paste this content in the notepad window:
    cd %ProgramFiles%\Windows Defender
    MpCmdRun.exe -removedefinitions -dynamicsignatures
    MpCmdRun.exe -SignatureUpdate
    Then save the File as Signature.txt and after that rename the extensions from .txt to .bat

    KB4601382 keeps giving me 0x80070003-screenshot-2021-04-27-114940.png

    When done make a right click on the file and select the option "Run as administrator".

    You should see then this Window for example:
    KB4601382 keeps giving me 0x80070003-screenshot-2021-04-27-114454.png

    Then wait until the window closes on its own.

    After that start the Windows Updates search in the Settings again please.

    Source: Windows Defender Signature Updates

    Additional information:
    Alternatively, you can download and install the Defender Signature Update from the linked source.
    Last edited by Tekkie Boy; 27 Apr 2021 at 05:39.
      My Computer

  5. Posts : 199
    Windows 10 Home
    Thread Starter

    Yes, it occurs while installing something about Defender, that what you said. Thank you for your help, why are you so helpful, and why do you know how to solve every single error users have? I have yet see you fail or say "I don't know"!

    Nevertheless, it solved itself. After restarting the PC I kept getting it and that's why I posted it here, because if a restart couldn't solve it I was expecting another black magic cmd coding mission to solve something that I don't know how it got broken.
      My Computer

  6. Posts : 850
    Win 10

    First the explanation for the error code 0x80070643.

    The error code means: ERROR_INSTALL_FAILURE - Fatal error during installation.

    Even if the error code in connection with Net Framework is mentioned again and again in the WWW, it is a general error code.

    And since I also had the error code on my computer today, I assume that Microsoft rolled out a faulty signature update.

    A new signature update is downloaded and installed with the help of the batch file and old ones removed beforehand.

    And in general I would like to mention again what I wrote yesterday:

    Tekkie Boy said:
    Usually giving up is not an option for me.

    But sometimes I get to the point.

    I am not omniscient and I also cannot everything.

    There are certainly people here who know and can more than I do.

    Have a nice day.

    Friendly greetings
      My Computer

  7. Posts : 199
    Windows 10 Home
    Thread Starter

    Amazing as always, Tekkie!
      My Computer

  8. Posts : 850
    Win 10

    Thanks for the kind words again.

      My Computer

  9. Posts : 3
    windows 10

    Tekkie Boy said:
    Thanks for the kind words again.

    Hi @Tekkie Boy !

    I have the same problem, help me please?

      My Computer

  10. Posts : 624
    Windows 10 Pro 21H2 x64

    About error code 0x80070643:

    For me, that error code looks more likely to happen for non-CU updates, when there's a CU to install.
    Usually for a Windows Defender update, IIRC. More likely to occur when there's a CU install planned.
    IOW, it looks like a result of Windows Update cancelling the update because of another update being prioritized over it.

    That error code seems to usually be transient for me.
      My Computers


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