how to solve the error 0xC1900500-0x20000

muiree hilstj 0 Reputation points
2026-08-05T07:13:42.1866667+00:00

I wanted to create an installation media with Windows 11, but when I run the Media Creation Tool, it shows an error.

Windows for home | Windows 11 | Install and upgrade
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  1. DaveM121 915K Reputation points Independent Advisor
    2026-08-05T07:51:19.01+00:00

    1

    If you have any 3rd party anti-virus and/or VPN installed on your PC, disable or uninstall that, then check if you can run the Media Creation utility.

    2

    If that does not resolve the problem, click your Start Button, then just type inetcpl.cpl and press Enter.

    On the resulting utility, select the the Advanced tab.

    Scroll down to the Security section, and ensure TLS 1.1 and TLS 1.2 are both enabled.

    Then check if you can run the Media Creation utility.

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  2. AI answer

    2026-08-05T07:14:01.95+00:00

    For Media Creation Tool errors while creating Windows 11 installation media, use these supported steps:

    1. Disconnect nonessential external hardware. Remove devices such as printers, scanners, speakers, USB flash drives, and external hard drives. If the PC is in a docking station, undock it.
    2. Make sure Windows is fully updated. Install important Windows updates, including hardware driver updates, and then try the Media Creation Tool again.
    3. Remove non-Microsoft antivirus temporarily. Third-party security software can cause upgrade and installation problems. Before uninstalling it, make sure the installer and activation information are available so it can be reinstalled later.
    4. Uninstall nonessential software. Old or unnecessary applications can interfere with setup. Go to Control Panel > Programs > Programs and Features, select the app, and choose Uninstall.
    5. Check Device Manager for driver problems. Open Device Manager and look for devices with a yellow exclamation mark. For any affected device, right-click it and choose Update Driver Software or Uninstall.
    6. Repair disk errors. Open Command Prompt as administrator and run: 
         chkdsk /f C:
      This requires administrator permissions and usually requires a restart.
    7. Repair system files. Open Command Prompt as administrator and run: 
         DISM.exe /Online /Cleanup-image /Restorehealth
      This also requires administrator permissions.
    8. If the tool still fails, create the installation media again from the official Windows 11 download flow. Under Create Windows 11 Installation Media, select Download Now, then run MediaCreationTool.exe.

    If the failure continues after these steps, contact Microsoft support.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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