Defender update loop

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  1. Posts : 2,078
    Windows 10 Pro
       #1

    Defender update loop


    I keep getting this update failure for Defender: Definition Update for Windows Defender - KB2267602 (Definition 1.239.797.0) - Error 0x80070643

    I used to be able to update Defender manually and then recheck the "update/security" of all settings and it would come back clean.

    Anybody have any idea why this is happening and how to resolve it? Going on 3 days now and it's starting to piss me off.
      My Computer


  2. Posts : 61,836
    64-bit Windows 11 Pro for Workstations
       #2

    Hello Plankton, :)

    To get your machine back to a protected state, you can manually download and apply the latest Windows Defender definition update by following the instructions outlined here:

    Get the latest definitions - Microsoft Malware Protection Center
    Last edited by Brink; 04 Apr 2017 at 17:52.
      My Computers


  3. Posts : 2,078
    Windows 10 Pro
    Thread Starter
       #3

    Thanks...I'll give that a go.
      My Computer


  4. Posts : 644
    Windows 10 Pro 64-bit
       #4

    It's an issue that MS is going to fix:

    http://www.thewindowsclub.com/window...tes-0x80070643
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  5. Posts : 2,078
    Windows 10 Pro
    Thread Starter
       #5

    Thanks bobby (Hill)....lol. I've sent in a feedback report on it. In the meantime I just decided to go with a free AV until it's fixed or I'll wait until the creators Update is released and just do a clean install with that. Nothing like starting from scratch.
      My Computer


  6. Posts : 25,024
    10 Home x64 (21H2) (10 Pro on 2nd pc)
       #6

    Bobby Phoenix said:
    It's an issue that MS is going to fix...
    @jyim89, one of the ' Microsoft Windows Defender Team' has registered on TenForums to let us know...
    https://www.tenforums.com/search.php?searchid=2017824
    ...and to ask for our logs to help them diagnose the problem.
    Windows 10 Update March 31 2017
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  7. Posts : 2,078
    Windows 10 Pro
    Thread Starter
       #7

    Thanks Bree....I PM'd jyim89 as requested in that 2nd link. The first link is broken, all I get is "sorry no matches. Please try some different terms"
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  8. Posts : 22
    Windows 10
       #8

    Plankton said:
    Thanks Bree....I PM'd jyim89 as requested in that 2nd link. The first link is broken, all I get is "sorry no matches. Please try some different terms"
    Thanks for your PM. Since I'm new to the forums I cannot directly respond back to you. We don't need any more logs at this point. We are working as quickly as we can to get a fix out. Meanwhile please manually obtain the latest definition update from following the instructions outlined on this link: Get the latest definitions - Microsoft Malware Protection Center.
    Please keep in mind these manual updates run silently so you can verify you have updated through the Defender client UI.
      My Computer


  9. Posts : 834
    Windows 10 Pro 64bit 21H2 19044.1766
       #9

    This fixed the issue for me...


    Brink said:
    Hello Plankton, :)

    To get your machine back to a protected state, you can manually download and apply the latest Windows Defender definition update by following the instructions outlined here:

    Get the latest definitions - Microsoft Malware Protection Center
    I got into this WD Update loop today after today's 'Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4015438)' on both desktop and laptop.

    After a successful manual WD update, it now says, 'Your device is up to date. Last checked: Today, ‏‎3:10 PM'

    Thanks Brink!
      My Computers


  10. Posts : 22
    Windows 10
       #10

    For those who have been experiencing the Windows Defender update error 0x80070643 recently, please check my latest update to the thread On Windows Defender Definition Update error 0x80070643.
      My Computer


 

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