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Eviemuy's avatar
Eviemuy
Copper Contributor
Aug 17, 2026

Is UUP dump a legitimate tool for Windows ISO download?

I want to download some old version of Windows ISO but Microsoft does not hold these ISO image files on its website now. I heard about UUP dump is also an available place for downloading Windows ISO ...
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Zaamp's avatar
Zaamp
Iron Contributor
Aug 17, 2026

UUP dump lets you generate a UUP dump Windows 10 ISO download by specifying your desired build, edition, language, and architecture. It then provides a script that downloads the required files from Microsoft and assembles them into an ISO. An autounattend. xml file, placed in the root of your installation media, tells Windows Setup exactly what to do automatically.

Simple Steps for Integration

1. Download a Windows 10 ISO via UUP Dump: Go to the UUP dump website, select the specific Windows 10 build, edition, and language you need, then download the script package. Run the provided script to assemble the ISO locally on your PC.

2. Prepare Your autounattend .xml Answer File: You can create your own answer file using tools like Windows System Image Manager, a PowerShell module like Unattend XmlBuilder, or by starting from a known template. This file will configure language, disk partitioning, user accounts, and can even bypass hardware requirements like TPM and Secure Boot.

3. Combine Them: To use autounattend .xml with your UUP dump Windows 10 ISO download, you have two main options:

  • Copy to USB Root: Place your renamed autounattend .xml file in the root of a bootable USB drive containing the Windows 10 installation files.
  • Integrate into the ISO: Use tools like oscdimg or mkisofs to rebuild the ISO with the answer file placed at its root.

4. Boot and Install: Boot your computer from the prepared USB or ISO. Setup will automatically detect and apply the configurations from your autounattend .xml, creating a hands-off, unattended installation with your specific settings.

When generating your UUP dump Windows 10 ISO download, you can often select options like including the latest updates or integrating .NET Framework 3.5 directly in the UUP dump conversion settings to save time.