Universal MediaCreationTool with support for Windows 10 21H1 released

Martin Brinkmann
Mar 21, 2021
Windows, Windows 10

Universal MediaCreationTool is an open source batch file for Microsoft Windows devices to download a Windows 10 ISO image to the system the batch file is executed on. Unlike Microsoft's Media Creation Tool, which will download the latest ISO only, it is giving the user the choice to download older Windows 10 versions. I reviewed the program back in 2020 and concluded that it offered a reliable way of downloading any Windows 10 ISO from Microsoft to the local system.

Tip: you may also use other tools such as UUP Dump Downloader or Rufus.

The latest version of the batch file supports all release versions of Windows 10 from Windows 10 version 1507 to Windows 10 21H1, the upcoming feature update for the operating system.

universal mediacreationtool windows

To download the latest version of the Universal MediaCreationTool, do the following:

  1. Load this URL (it points to GitHub) in your browser of choice: https://gist.github.com/AveYo/c74dc774a8fb81a332b5d65613187b15#file-mediacreationtool-bat
  2. Select the RAW button at the top.
  3. Right-click anywhere on the page and select Save As.
  4. The name of the file is MediaCreationTool.bat.txt by default. You need to remove the ".txt" part from the filename.

All that needs to be done is to execute the batch file on the local system. Doing so displays selection menus which you may use to select the Windows 10 version, the language, edition, and architecture. The tool downloads the image from Microsoft's server based on the selection.

Support for the latest version of Windows 10 is a nice addition, but it is not the only new feature that the author added to the batch file.

The new version supports media presets that users may use to skip to the USB copying or ISO saving dialog right away using user defined values.

The second option adds auto upgrade presets as well. These may be used to upgrade the current system, or downgrade it, to another version and even edition. The author tested upgrades and downgrades with Windows 10 version 2004, 20H2, and 21H1, including switching between different architectures and editions, and it worked fine in the tests.

All that needs to be done is to rename the batch file by prepending "auto " to the filename to upgrade to Windows 10 version 21H1, or another numeric identifier to upgrade to a previous released version, e.g. "auto 2004 " to upgrade to Windows 10 version 2004.

It is recommended to create backups of the system before the batch file is used to upgrade or downgrade the underlying system.

Now You: Which tool / site do you use to download Windows 10 ISO images? (via Deskmodder)

Universal MediaCreationTool with support for Windows 10 21H1 released
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Universal MediaCreationTool with support for Windows 10 21H1 released
Universal MediaCreationTool is an open source batch file for Microsoft Windows devices to download a Windows 10 ISO image to the system the batch file is executed on.
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  1. com said on September 17, 2021 at 7:59 pm

    Only 1507 and 1607 working other not only new last

  2. Mortov Molotov said on March 26, 2021 at 6:44 am

    I use Rufus since I discovered that it takes a while for Media Creation Tool to effectively download the latest Windows 10 version.

  3. Anonymous said on March 23, 2021 at 6:18 am

    I always use the Media Creation Tool, but I remember the the Rufus utility (it creates bootable drives) allows you to download a Windows ISO.

  4. John said on March 22, 2021 at 9:27 am

    You might enjoy doing a review of the free program called:


    Ventoy boots from ISO files you copy over, so gone are the painful ways of the past to create a multi-boot flash device. Now, unlike your story here, it doesn’t download any ISOs, you must copy them there yourself after you’ve downloaded them, but I propose this as a suggestion for a stand alone future review.

    1. Peterc said on March 23, 2021 at 2:40 am


      Ventoy: create bootable USB media that uses ISO images – gHacks Tech News
      by Martin Brinkmann on April 20, 2020

      Another look at the open source bootable USB tool Ventoy – gHacks Tech News
      by Martin Brinkmann on June 01, 2020

  5. Corky said on March 22, 2021 at 9:11 am

    Just a heads up UUP Dump Downloader has been discontinued.

    UUP dump downloader
    An open source application that has been created with simplicity in mind. Uses stripped down version of UUP dump and contains only the most needed options for quick and easy download and conversion of UUP files. No longer developed due to bad decisions made at the beginning of the development which led to unmaintainable code.

    1. me said on May 5, 2021 at 4:29 am

      UUP dump works fine for me… well, on Linux, the Windows CMD script threw a certificate error.

      HeiDoc.net is crap, the latest versions just shows a blank Win 10 tab, maybe ‘cos I couldn’t be bothered to unblock the ads it tries to load.

  6. Anonymous said on March 22, 2021 at 1:34 am

    I have the habit of getting the latest Win10-ISO and burning it to an RW-DVD. However the latest Win10-ISO for DVD does not fit on a DVD, it is a little too big.

    I then burned this ISO (for DVD) to a USB-stick using RUFUS. This USB-stick failed to get Win10 installed.
    I then used an old Win10-ISO on DVD and updated the PC later.

    Later I downloaded the latest Win10-ISO for USB-stick, I have not yet tried this one.

    So what is the purpose of making available a W10-ISO for DVD, when it does not fit on a DVD?

    1. jojo said on March 22, 2021 at 8:21 am

      There are dual-layer dvds holding more than 8GB data

  7. ilev said on March 21, 2021 at 7:28 pm

    There is no need for the tool. Just go to Heidoc.net and download ISO version of Windows including Windows 7.

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