UUPMediaCreator: Create a Windows 10 ISO with all possible versions

Those of you who use UUPMediaCreator should update to the new version As in .NET Core, the security vulnerability CVE-2021-26701 has been closed here.

But there have been other improvements added since our last update. Info and download are below in the post.

Gustave has updated his UUPMediaCreator to version With this version, it is now possible to download Windows 10X and Windows Holographic. Everything else below.

Microsoft provides (except for the ESDs) all data as UUP (Unified Update Platform) files and Windows 10 is then updated or an ISO is created using these many individual files.

There are many ways to get an ISO. Either directly via the MediaCreationTool (MCT), or create yourself via UUP Dump. But now there is a new variant. The UUPMediaCreator by Gustave and Rafael. Currently in the first public version 0.2 in connection with this article.

I was able to test version 0.1 a few days ago. That worked well too. But to say it right from the start. This is only for those who need special Windows 10 versions and want to integrate updates later.

A comparison of the individual variants shows the difference

  • The MCT also loads the Home, Pro, Education as an N version
  • The Home Single Language, Pro for Workstation (Auch N), Pro Education (Auch N), Enterprise (Auch N), Enterprise for Virtual Desktops and IoT Enterprise are also available via UUP Dump.
  • In contrast, UUPMediaCreator also creates Windows 10 Pro-China Only, Windows 10 Pro Single Language, Enterprise multi-session, Windows 10 Enterprise Evaluation, Windows 10 Enterprise G and the Windows 10 Team.

So it's really only for users who need a special version of Windows 10. All you need is the little tool itself and the input prompt or Powershell -> cmd and press Enter.

All relevant settings that are possible and necessary are then obtained via uupdownload. In my experiment, I “stupidly” created the ARM. But that didn't matter at the moment. In the little animation, I switched it to an x64 Insider 20251.

As an example, the commands are:

  • uupdownload -s Professional -v 10.0.20251.1 -r External -c fe_release -b Dev -t arm64 -l de-DE -o dlfolder
  • This will download the Insider 20251 as an ARM.
  • When the download is finished, this command follows

for / f% f in ('dir / b. \ dlfolder \') do uupmediaconvertercli% CD% \ dlfolder \% f Windows_10_Pro_ARM64_Deutsch.iso de-DE

  • Anything not written in bold can be exchanged.

For an x64 with all possible indexes, the command would then be:

  • uupdownload -s Professional -v 10.0.20251.1 -r External -c fe_release -b Dev -t amd64 -l de-DE -o dlfolder

If banners are shown that something was mounted, you can ignore it. If the ISO is created in the main folder by default, you can make it available by right-clicking and, for example, display it with the DISM GUI.

Gustave has not yet created a readme on GitHub. But that will certainly follow. One thing you have to bring with you to UUP Dump is time. It takes a long time for everything to download. Because everything is loaded one by one and not several downloads are carried out at the same time as with the UUP dump with Aria.

Changelog version

  • Fixed an issue that would prevent the download of Windows 10X
  • Fixed an issue that would prevent the download of Windows Holographic
  • Fixed an issue with Client Targeted Attribute Combined string Generation
  • Updated dependencies
  • Added a parameter for specifying the phone release type

This update brings the following fixes and enhancements to UUPMediaConverterCli

  • Updated dependencies

Known issues

  • License xmls need to be extracted from the Composition Database (CompDB) for WCOS editions
  • APPX files are not saved in the correct path for WCOS editions
  • Some Dlls are missing from Windows PE for Desktop editions

Info and download

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