1.    3 Weeks Ago #1
    Join Date : Mar 2016
    Posts : 7
    Windows 10

    Anniversary update fail. Error 0x8007042B - 0x4001E

    I have been attempting to upgrade windows 10 pro, from version 10240 to version 1607 (anniversary update). I have tried both the Windows 10 Upgrade Assistant and the media creation tool (ISO). I get to 96% and, boom, every time it resets and restores my system to where it was before the upgrade started. The error I get is as follows:

    0x8007042B - 0x4001E
    The installation failed in the SECOND_BOOT phase with an error during PRE_OOBE operation.

    I have searched for an answer and haven't found one. I have tried to trouble shoot it as best I can by unplugging everything but my keyboard/mouse, updated chipset, etc.. MS techs haven't been much help. Any thoughts? The iso is not on the OS drive, not sure if that matter. I would rather not have to nuke the system. I hate having to reinstall programs (adobe is the worst). Any help is appreciated.

      My System SpecsSystem Spec

  2.    3 Weeks Ago #2
    Join Date : Aug 2015
    Posts : 1
    Windows 10

    Hi I have exactly the same problem same error codes etc I then tried to do a factory refresh but was told I need a media folder.
    I have a Lenovo idea pad miix 300-119by
    My other PC's and laptops have all been OK
      My System SpecsSystem Spec

  3.    2 Weeks Ago #3
    Join Date : Mar 2016
    Posts : 7
    Windows 10

    I spent many hours with MS "support" on the matter and they have offered no solutions save for the nuclear option (reformat). Anyone have any other ideas?
      My System SpecsSystem Spec


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