Windows Defender Platform update KB4052623 Error 0x80070643


  1. Posts : 33
    Win10
       #1

    Windows Defender Platform update KB4052623 Error 0x80070643


    Hi everyone, I'm having problems with defender platform updates from months. EVERY time there's an update kb4052623 I got error 0x80070643.
    Last times afters various attempts I installed them, but this time I have no luck with 4.18.2003.8. I have not others antivirus installed.

    I tried EVERYTHING:
    sfc /SCANNOW
    Dism /Online /Cleanup-Image /CheckHealth
    Dism /Online /Cleanup-Image /ScanHealth
    Dism /Online /Cleanup-Image /RestoreHealth
    Windows update troubleshooter
    Netfx repair tool
    Manual update
    Update directly from windows defender
    Windows clean boot
    Renamed Software distribution e catroot2 dir
    Tool wureset from wureset.com.

    No problems with others windows updates.
    Please help me. Thanks.
    Last edited by Juans; 25 Mar 2020 at 15:25.
      My Computer

  2. Jacee's Avatar
    Posts : 1,586
    Win 10 home 20H2 19042.844
       #2

    Read here to see what the error means and how to hopefully fix it: Windows Defender Error 0x80070643 Updating Definitions >> Winhelponline
      My Computers


  3. Posts : 33
    Win10
    Thread Starter
       #3

    Jacee said:
    Read here to see what the error means and how to hopefully fix it: Windows Defender Error 0x80070643 Updating Definitions >> Winhelponline
    Thanks but no problem with definition updates, I have issues with platform update
      My Computer

  4. Jacee's Avatar
    Posts : 1,586
    Win 10 home 20H2 19042.844
       #4
      My Computers


  5. Posts : 33
    Win10
    Thread Starter
       #5

    Thanks but nothing useful for my case
      My Computer

  6. Matthew Wai's Avatar
    Posts : 5,039
    Windows 10 Home 20H2
       #6

    I just installed 4.18.2001.10 via Windows Update MiniTool. Then, I installed 4.18.2003.8 via VBScript. Both were successful. Give it a go.

    Windows Defender Platform update KB4052623 Error 0x80070643-platform-updates.jpg
      My Computer


  7. Posts : 33
    Win10
    Thread Starter
       #7

    Matthew Wai said:
    I just installed 4.18.2001.10 via Windows Update MiniTool. Then, I installed 4.18.2003.8 via VBScript. Both were successful. Give it a go.

    Windows Defender Platform update KB4052623 Error 0x80070643-platform-updates.jpg
    Hi, how can I do? Thanks
    Last edited by Juans; 26 Mar 2020 at 05:01.
      My Computer

  8. Matthew Wai's Avatar
    Posts : 5,039
    Windows 10 Home 20H2
       #8

    Download Windows Update MiniTool.

    Juans said:
    Tool wureset from wureset.com.
    If the following is different from the above, give it a go.
    Reset Windows Update in Windows 10
      My Computer


  9. Posts : 33
    Win10
    Thread Starter
       #9

    After turning on the computer this morning, the update installed itself without any other action on my part, as happened the past few times. When and if it happens again at the next platform update, I believe I will have to try an In-place Upgrade
      My Computer


  10. Posts : 1
    Windows 10 Home
       #10

    I getting real fed up with this "Defender platform update 0x80070643 error" every time ther is an update :-(
    I only get the platform updated with the major WIndows 10 updates or when "in place" installing with MediaCreationTool.
    All other times the "Defender platform update" comes it fail installing. All other updates install as they should.
    Have tried all fixes I found. Downloaded and installed KB manually. User Minitool. Nothing helps.
    And there is nothing in any logs or anything to tell WHY it is failing. Only the "0x80070643".
    The Defender definitions is updating as they should. But with a several months old platform? Well...
      My Computer


 

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