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windows 11 error code 0xc1900101

Allan Lohse 0 Reputation points
2026-02-09T22:02:05.7866667+00:00

During a windows 11 installation the code 0xc1900101 appears, how do I fix this

Windows for home | Windows 11 | Windows update
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  1. Manoel Barros 17,340 Reputation points Independent Advisor
    2026-02-10T01:38:49.3466667+00:00

    Hi! This installation error is generic, but you can try a few steps. However, I need more details about your environment, such as:

    • Are you upgrading from Windows 10 to Windows 11 using the Upgrade Assistant, Windows Update, or a Clean Boot (Flash Drive)?

    If you are trying to upgrade from Windows 10 to 11 using the Upgrade Assistant, there are a few solutions you can try:

    Clean Boot

    1. Press CTRL + R > Type ''msconfig'' (without quotes) > Click on the ''Services'' tab.
    2. Check the ''Hide all Microsoft services'' option > Click on ''Disable All'' > ''OK''.
    3. Press CTRL + SHIFT + ESC to open the Task Manager > Click on the "Startup" tab > Disable all programs (Right-click on the program > Disable).
    4. Restart the computer > See if the problem reappears.
    5. If the problem is resolved, it means that a third-party program or service is causing the problem.

    NOTE: This procedure is not a solution, just a test. It disables all third-party services and programs. If the problem is solved later, enable the programs and services that will start with Windows again.

    • Remember, some programs and services may not work properly.

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  2. Q&A Assist
    2026-02-09T22:02:14.13+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    The error code 0xc1900101 during a Windows installation, including Windows 11, typically indicates a rollback due to driver compatibility issues. Here are some steps you can take to resolve this issue:

    1. Update Drivers: Ensure all your device drivers are up to date. This includes graphics, network, and storage drivers. You can check the manufacturer's website for the latest versions.
    2. Disconnect Peripheral Devices: Disconnect all non-essential devices from your computer, leaving only the mouse, keyboard, and display connected. This can help eliminate conflicts during the installation.
    3. Perform a Clean Boot: Boot your system in a clean boot state to minimize the number of drivers and startup programs running. This can help identify if a background application is causing the issue. You can find instructions on how to perform a clean boot here.
    4. Check for Antivirus Software: Temporarily uninstall any antivirus software, as it may interfere with the installation process.
    5. Review Log Files: Analyze the log files generated during the installation process, such as Setuperr.log and Setupact.log, located in the %windir%\Panther directory. These logs can provide more specific information about what went wrong.
    6. Update BIOS: Ensure that your BIOS is up to date, as outdated BIOS versions can sometimes lead to compatibility issues during installations.

    By following these steps, you should be able to resolve the error code 0xc1900101 and successfully complete the Windows installation.

    References:

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