window's update , then Failed to install on ‎01-‎09-‎2026 - 0xc1900101 please help

Sujit Mohanto 0 Reputation points
2026-09-01T15:10:34.5866667+00:00

Failed to install on ‎01-‎09-‎2026 - 0xc1900101 please this problem

Windows for home | Windows 11 | Windows update

2 answers

Sort by: Oldest
Most helpful Newest Oldest

  1. AI answer

    2026-09-01T15:10:52.6933333+00:00

    0xC1900101 usually means a driver problem during the Windows upgrade. Try these steps in order:

    1. Check free space Make sure the PC has enough storage:
      • at least 16 GB free for 32-bit Windows
      • at least 20 GB free for 64-bit Windows
    2. Run Windows Update again Go to Start > Settings > Windows Update and install all available updates, including optional hardware or driver updates if shown.
    3. Disconnect extra hardware Unplug anything not required for the update, such as:
      • external drives
      • USB storage
      • docks
      • other peripherals
    4. Check Device Manager for driver errors
      • Open Start and search for Device Manager
      • Look for devices with a yellow exclamation mark
      • Right-click the device and choose Update Driver Software or Uninstall
    5. Update third-party drivers If the PC has added hardware, download the latest drivers from the hardware manufacturer’s website.
    6. Remove third-party antivirus/security software temporarily This can block upgrades. Make sure the installer or product key is available before removing it. Windows Defender can protect the PC meanwhile.
    7. Repair disk errors Open Command Prompt as administrator and run: 
         chkdsk /f C:
      Restart when prompted.
    8. Repair Windows system files Open Command Prompt as administrator and run: 
         DISM.exe /Online /Cleanup-image /Restorehealth
    9. Do a clean boot and try the update again A clean boot can help if background apps or services are interfering with setup.
    10. If the update still fails For 0xC1900101 - 0x20017, setup logs in %windir%\Panther can help identify the problem driver. Check Setuperr.log and Setupact.log and update or uninstall the driver that is causing the failure.
    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

  2. GsN5034 - IA 76,465 Reputation points Independent Advisor
    2026-09-01T15:59:56.24+00:00

    Hello, thank you for reaching out.

    This error is usually related to incompatible or corrupted drivers, which can prevent Windows from updating properly.

    Make sure all drivers, including the BIOS, are up to date. If you have any third-party antivirus software installed, temporarily uninstall it, and then proceed with the installation.

    Another successful method for upgrading is to use the Windows 11 ISO file.

    1. Download the Windows 11 ISO file from the official Microsoft website here -

    https://www.microsoft.com/en-us/software-download/windows11

    1. Make sure you select the language that matches your Windows display language.
    2. Download the Windows 11 ISO file.
    3. Mount the ISO file and double-click setup.exe to begin the installation.

    Note -

    It is like updating Windows. All of your files, apps, and settings will be preserved during the update.

    Important note -

    Make sure you select the option to keep your files and apps during the upgrade.

    Let me know if you still need more help.

    Was this answer helpful?

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.