Windows 10: Issues to upgrade to Windows 11 24H2 Error : 0xC1900101 - 0x40021

Discus and support Issues to upgrade to Windows 11 24H2 Error : 0xC1900101 - 0x40021 in Windows 10 Software and Apps to solve the problem; Hi,I'm try to upgrade to the latest Windows 11 version 24H2 This always fails with a errorWe couldn't install Windows 110xC1900101 - 0x40021The... Discussion in 'Windows 10 Software and Apps' started by Gerd de Munter, Jan 3, 2025.

  1. Issues to upgrade to Windows 11 24H2 Error : 0xC1900101 - 0x40021


    Hi,I'm try to upgrade to the latest Windows 11 version 24H2 This always fails with a errorWe couldn't install Windows 110xC1900101 - 0x40021The installation failed in the SECOND_BOOT phase with an error SYSPREP_RESPECIALIZE operation see screenshot as well The system where I have the problem with is an Acer laptop, model : A517-52-760R, no external device are connected.First attempt I did was using the Check for Updates, afterwards updated drivers, bios.Also downloaded the Windows 11 24H2 iso, extracted it and try to install from the setup.exe.Still same issue, any idea what is going wr

    :)
     
    Gerd de Munter, Jan 3, 2025
    #1

  2. Error 0xC1900101 - 0x40021

    Hello,

    I'm trying to upgrade my Windows 10 to Windows 11 but I've got a blue screen with this error :
    INVALID_DATA_ACCESS_TRAP

    After that, when I came in Windows 10, the configuration of Windows 11 tell this error :

    0xC1900101 - 0x40021 : The installation failed in the SECOND_BOOT phase with an error in the BOOT operator.

    (This error occurs when I'm use the ISO file)
    (I've already tried Windows 11 Installation Assistant)

    Thanks

    Also, I've an Ubuntu dualboot on my laptop
     
    Aloïs Bozon, Jan 3, 2025
    #2
  3. error 0xC1900101 - 0x40021

    • 0xC1900101 - 0x40021 the installation failed in the SECOND_BOOT phase during SYSPREP_RESPECIALIZE operation.
    • I dont know how to solve this, and I wasn't able to find a solution. Im upgrading from windows 7


    Issues to upgrade to Windows 11 24H2  Error : 0xC1900101 - 0x40021 [​IMG]
     
    adrianrondon, Jan 3, 2025
    #3
  4. Issues to upgrade to Windows 11 24H2 Error : 0xC1900101 - 0x40021

    Windows Update Error 0xC1900101- 0x40021

    So recently I tried updating my computer which is running Windows 10 currently...to Windows 11 but the upgrade froze on a black screen and so I force-restarted my computer and it rolled back to Windows 10 with this error :

    We couldn't install Windows 11

    We've set your PC back to the way it was right before you started installing Windows 11.

    0xC1900101- 0x40021

    The installation failed in the SECOND_BOOT phase with an error during SYSPREP RESPECIALIZE operation
     
    Zaki Sullivan Da Cruz, Jan 3, 2025
    #4
Thema:

Issues to upgrade to Windows 11 24H2 Error : 0xC1900101 - 0x40021

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