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Bobomm's avatar
Bobomm
Bronze Contributor
Nov 11, 2025

How can I upgrade to Windows 11 26H1 on my PC?

I heard Windows 11 26H1 is coming out and I saw a few users already have Windows 11 26H1 installed on their computer. When I checked the update section on my Windows 11 PC (currently running Windows ...
device management
Update management
Luccask's avatar
Luccask
Iron Contributor
Nov 11, 2025

First, a critical point: Windows 11 26H1 is a future version that has not been released. It does not exist as a final, stable product yet. Any method to get it now will involve pre-release, unfinished software.

How about using UUP Dump to Create an ISO for upgrading to Windows 11 26H1. This is a powerful, legitimate, but complex method used by tech enthusiasts. The website UUP Dump is a community-run site that lets you download the same update files Microsoft uses in its Insider Program and package them into a standard ISO file.

The site scrapes Microsoft's servers for the latest build files and provides a script that downloads and builds an ISO for you.

How to Do It:

1. Go to uupdump,net.
2. Select the latest Dev Channel build for Windows 11 (this will be the 26H1 pre-release).
3. Choose your language and edition (e.g., Windows 11 Pro).
4. Download the zip file provided, run the script inside it, and it will build your ISO.
5. You can then use this ISO to perform an in-place upgrade.

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