Error 0x1900101 WIn 11 24H2 I Am Clueless

Anonymous
2025-03-16T17:39:06+00:00

Tried many times to update WIn11 23H2 to 24H2. Gets to a certain point and rolls back. Error 0x1900101. Tried so many things online, but this seems to be a generic error and it does not help. No clue where to turn to fix it at this point. Can someone help?

Windows for home | Windows 11 | Windows update

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  1. Anonymous
    2025-03-16T21:45:37+00:00

    OK, tried this. This time I got a slightly different error:

    0x1900101 - 0x40017

    Installation failed in the second boot phase with an error during BOOT operation.

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  2. DaveM121 931.2K Reputation points Independent Advisor
    2025-03-16T18:11:20+00:00

    Hi, I am Dave, I will help you with this.

    The most successful method to install version 24H2 is to use the Windows 11 ISO.

    You will need at least 40GB of free space on your C drive for the update.

    Please follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.

    Click this link:

    https://www.microsoft.com/software-download/win...

    to download the Windows 11 ISO

    When the ISO file completes downloading

    Disconnect from the Internet

    Disconnect all external devices with the exception of a mouse or keyboard.

    Temporarily disable any 3rd party Anti-virus you may have installed

    Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.

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