Windows 10: Error installing 20H2 update for Windows 10 Pro. Error code: 0x8007042B - 0x4001E

Discus and support Error installing 20H2 update for Windows 10 Pro. Error code: 0x8007042B - 0x4001E in Windows 10 Installation and Upgrade to solve the problem; I've tried installing the latest Oct 2020 update for windows 10 using Windows update and Media Creation Tool, both will install and at the final boot,... Discussion in 'Windows 10 Installation and Upgrade' started by Loke Uei, Nov 16, 2020.

  1. Loke Uei Win User

    Error installing 20H2 update for Windows 10 Pro. Error code: 0x8007042B - 0x4001E


    I've tried installing the latest Oct 2020 update for windows 10 using Windows update and Media Creation Tool, both will install and at the final boot, I see a magenta screen saying installing 95%, for about 5 minutes before the machine boots, shows a "Undoing software Install" screen, then booting back to my old Windows. After logging in, I see the Windows 10 Setup dialog box that says:


    We Couldn't install Windows 10

    We've set your PC back to the way it was right before you started installing Windows 10.


    0x8007042B - 0x4001E

    The installation failed in the SECOND_BOOT phase with an error during PRE_OOBE operation.


    My current Windows version is 1909 OS build: 18363.1198


    I'm attaching the log files as requested by the troubleshooting guide:

    https://www.dropbox.com/sh/uxhxltborkz0xsq/AAC5DEuZ3XM8xBsqGIC9dy-Ma?dl=0

    :)
     
    Loke Uei, Nov 16, 2020
    #1
  2. BadElbow Win User

    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.

    Thanks.
     
    BadElbow, Nov 16, 2020
    #2
  3. Error code 0x8007042B - 0x4000D

    Hi, I'd need your help.

    I've tried to upgrade my current Win 7 Pro-version into Win 10 Pro-version, but the error code appeared in the final stage of the installing every time:

    Error code 0x8007042B - 0x4000D
    The installation failed in the stage SECOND_BOOT because the error took place during the function MIGRATE_DATA

    In the control panel, Windows Update-section has been called as error code 0x8007042B - 2000D and there weren't any solution for this error in the guidelines .

    I ran the sfc /scannow in the cmd and there weren't any defragmentations.

    How could I get this error code fixed ?

    My goal is to preserve all my music making plugins & files as they are in Win 7, so I'd like to keep some of my old files (Program files/Vstplugins, Program files (x86)/Vstplugins etc.) from Win7 to Win 10.
     
    Samitsamit, Nov 16, 2020
    #3
  4. meloneum Win User

    Error installing 20H2 update for Windows 10 Pro. Error code: 0x8007042B - 0x4001E

    BIOS error codes

    So I have motherboard with installed small LED screen, which presents BIOS error codes.

    Where can I find a list of those errors. And I don't mean beep codes, but the "number" codes.

    Ex after installing sound card, the motherboard startup fails with the code 15.

    Example picture of code is here.
     
    meloneum, Nov 16, 2020
    #4
Thema:

Error installing 20H2 update for Windows 10 Pro. Error code: 0x8007042B - 0x4001E

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