Windows 10: Attempt to update Windows 10 via ISO fails: "Windows 10 update failed"

Discus and support Attempt to update Windows 10 via ISO fails: "Windows 10 update failed" in Windows 10 Installation and Upgrade to solve the problem; Having been prompted by Microsoft to update my pc, my initial attempt to do so failed with error Oxc1420121. I then followed a recommendation from... Discussion in 'Windows 10 Installation and Upgrade' started by sjh001, Sep 2, 2019.

  1. SJH001
    sjh001 Win User

    Attempt to update Windows 10 via ISO fails: "Windows 10 update failed"


    Having been prompted by Microsoft to update my pc, my initial attempt to do so failed with error Oxc1420121. I then followed a recommendation from this forum to upgrade by downloading the ISO and then performing an offline upgrade. Although that ran quite awhile and seemed to be headed towards a successful conclusion it eventually stopped with the message noted above. Any suggestions? Thank you.

    :)
     
    sjh001, Sep 2, 2019
    #1
  2. JDS21
    jds21 Win User

    Windows Updates failed to instal

    I just did step one and they have just all installed.... thank you so much.... it was quite frustrating having that update window pop up every 5 minutes and failing to instal every time

    Thanks mate
     
    jds21, Sep 2, 2019
    #2
  3. THEMAILMAN78
    TheMailMan78 Win User
    Windows Update keeps failing!

    10 days ago they updated the security certificates.
     
    TheMailMan78, Sep 2, 2019
    #3
  4. FX-GMC
    FX-GMC Win User

    Attempt to update Windows 10 via ISO fails: "Windows 10 update failed"

    Windows update failing

    You could try the Windows Update troubleshooter. http://windows.microsoft.com/en-us/windows7/open-the-windows-update-troubleshooter

    If that doesn't work then do this:

     
    FX-GMC, Sep 2, 2019
    #4
Thema:

Attempt to update Windows 10 via ISO fails: "Windows 10 update failed"

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