Windows 10: On Windows Defender Definition Update error 0x80070643

Discus and support On Windows Defender Definition Update error 0x80070643 in Windows 10 Updates and Activation to solve the problem; Update 4/5/2017 4:00AM pst: Please update to the latest threat definition version (1.239.837.0 or higher) via Windows Update or the Windows Defender... Discussion in 'Windows 10 Updates and Activation' started by jyim89, Apr 4, 2017.

  1. jyim89 Win User

    On Windows Defender Definition Update error 0x80070643


    Update 4/5/2017 4:00AM pst:

    Please update to the latest threat definition version (1.239.837.0 or higher) via Windows Update or the Windows Defender Client UI. If you are still experiencing the same 0x80070643 behavior, we recommend doing one final manual update with the latest packages from the adl portal: https://www.microsoft.com/security/p...tions/adl.aspx. From the portal please download and install both ‘Antimalware and antispyware updates’ and ‘Network Inspection System updates’ that works for your system.
    __________________________________________________________________

    Hello all,

    I just wanted to start a thread to have a chance to address everyone and inform you that the Windows Defender team is aware of the situation and working as quickly as possible to resolve the issue. We thank you for your patience and we should have a fix rolled out soon.

    Meanwhile, for those running into the definition update error 0x80070643 (or protection definition error: -2147023293) we recommend you to manually get your machines back to a protected state by following the instructions outlined here: https://www.microsoft.com/security/p...tions/adl.aspx.

    Please note the manual adl package is designed to update silently. To verify the manual update worked correctly please check with the Windows Defender (or SCEP) Client UI to see if it reports the latest threat definition version. The latest definition version can also be found in the link above (currently 1.239.797.0).

    Thank You,
    Jason Yim
    Windows Defender

    :)
     
    jyim89, Apr 4, 2017
    #1

  2. Windows Update

    Definition Update for Windows Defender - KB2267602 (Definition 1.215.2267.0) - Error 0x80070643

    Hello,

    I am using windows 10 Home Single

    While updating windows defender I get a connection failed error whereas, if I try updating through windows update I get this error "Definition Update for Windows Defender - KB2267602 (Definition 1.215.2267.0) - Error 0x80070643".

    Please help.

    Thanks

    Rajiv
     
    RajivAnand, Apr 4, 2017
    #2
  3. windows defender is not updating

    windows defender is not updating on windows 10

    issues is Definition Update for Windows Defender - KB2267602 (Definition 1.213.7723.0) - Error 0x80070643
     
    MuzammilMiah, Apr 4, 2017
    #3
  4. JSheridan Win User

    On Windows Defender Definition Update error 0x80070643

    Thanks for keeping us updated. *Smile
     
    JSheridan, Apr 4, 2017
    #4
  5. jyim89 Win User
    bump. Please find my latest update above.
     
    jyim89, Apr 4, 2017
    #5
  6. clam1952 Win User
    @jyim89 Thanks all back to normal now.
     
    clam1952, Apr 4, 2017
    #6
  7. Yes, today ,this morning, all went finally fine ( almost" out of the blue" !)
    We can normally update our Defender without these ,very annoying errors,very glad and it costed us lots of time and headaches trying to solve it.
    We all do hope it will stay this way !!
     
    pietcorus2, Apr 4, 2017
    #7
  8. swarfega Win User

    On Windows Defender Definition Update error 0x80070643

    The link in your post doesn't work: "This login.live.com page can’t be found"
     
    swarfega, Apr 4, 2017
    #8
  9. cbwilsha Win User
    The link works fine for me using 15063.14 and Chrome.
     
    cbwilsha, Apr 4, 2017
    #9
  10. brummyfan Win User
    Yes, it works fine now*Biggrin
     
    brummyfan, Apr 5, 2017
    #10
  11. marsmimar Win User
    Finally had a chance to test latest updates(s) and all appears to be working. Marking this thread as solved. Thanks to Jason Yim and the WD Team.
     
    marsmimar, Apr 5, 2017
    #11
  12. hi there, I logged in tenforums just to ask about that issue and I immediately found this sticky thread: you are indeed one step above guys! *Wink

    BUT.. my sit is a little different, I guess. Yesterday I found 3 updates available and I installed all: the Defender one fails, as you can see in the screenshot


    On Windows Defender Definition Update error 0x80070643 [​IMG]


    I reboot to let Windows apply the other two updates and then tried again: well, the update was not available this time, and it never was again (tried to search for updates many times). Can't understand why..

    My Windows Defender definition is now 1.239.1340.0, if helps..

    Should I manually download the updates? And last but not least, it's not clear to me from the OP post if MS developers told that situation is now OK and updates should work or if the solution is to manually update..

    thanks a lot guys, see you! *Wink
     
    brainvision, Apr 5, 2018
    #12
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