Everything Windows 11: May 2026

For those on older versions of Windows 11, here is an excellent article on how to upgrade to version 25H2.

You can download the Windows 11 25H2 ISO file using the Microsoft official download page, the Windows Insider Program download page, or the UUP Dump script.
After downloading, use Rufus to create a bootable USB drive for a clean installation or upgrade, even on unsupported hardware.

Windows 11 25H2 (2025 Update) is officially available starting September 30, 2025. You can download the ISO file directly from the Microsoft Support website, or access preview builds through the Windows Insider Program.

If you want more flexibility, you can also generate an ISO using the UUP Dump tool. This approach is ideal for performing a clean installation or an in-place upgrade on a spare computer or virtual machine with the most up-to-date build of the operating system.

UUP Dump is a widely used utility that allows you to build a custom Windows 11 ISO from publicly available preview builds. It works by downloading the required files directly from Microsoft’s update servers and packaging them into an installation image. While the resulting ISO is unofficial, the files themselves come from Microsoft, making it a reliable option for advanced users and enthusiasts.

In this guide, I will show you how to download the Windows 11 ISO (version 25H2) and create a bootable USB drive using Rufus.

Important: It’s recommended to create a backup of your computer before installing this version. You have been warned.

** Download Windows 11 25H2 ISO file from Microsoft support

To download the official Windows 11 25H2 ISO file, follow these steps:

Open the Microsoft Support website.
Select the Windows 11 option under the “Download Windows 11 Disk Image (ISO) for x64” section.
Click the Confirm button.
Select the installation language.
Click the Confirm button.
Click the Download button to save the Windows 11 25H2 ISO file.

Once you complete the steps, the Windows 11 2025 Update ISO file will be downloaded to your computer.

Download Windows 11 25H2 ISO file from UUP Dump

To download the Windows 11 ISO file with the UUP Dump tool, use these steps:

Open the UUP Dump on the 25H2 page to download the latest build for 26200.xxxx build series.
Select the “Windows 11, version 25H2” option to download the latest (x64) ISO file, for example, build 26200.8313.

Quick tip: If you have a Copilot+ PC or a device using an ARM processor, then download the “arm64” architecture. Also, the build number may be different, depending on when you’re reading this guide. As a result, pick the build with the higher number.
Select the language for the installation in the “Language” setting.
Click the Next button.
Select the version 25H2 editions to include in the Windows 11 ISO file.
Click the Next button.
Select the “Download and convert to ISO” option.
Check the “Include updates (Windows converter only)” option.

Quick note: This step enables the script to integrate the updates, resulting in an ISO file version 25H2.
Click the “Create download package” button to save the tool on your computer.
Open the zip folder with File Explorer.
Click the Extract all button.
Select the location where you want to extract the files.
Click the Extract button.
Right-click the “uup_download_windows.cmd” batch file and select Run as administrator.
Click the More info option.
Click the “Run anyway” button to begin the lengthy process.
Press the “R” key to run the script once, and then press Enter.
Press the 0 key when prompted to close the screen.

Once you complete the steps, the Windows 11 25H2 ISO file will be created inside the folder where you extracted the UUP Dump tool. This process can take up to an hour, depending on your internet connection and how long the script takes to run.

f you encountered an issue while running the UUP Dump script, right-click the “Remove_Failure_MountDr_TempDir.cmd” in the script folder and select the “Run as administrator” option. After the process completes, run UUP Dump one more time.

Also, ensure your computer has sufficient space for the script to process the files, to avoid issues and delays. Typically, the device requires approximately 70GB of free space on the primary drive.

Download Windows 11 25H2 ISO file from Insider program

To download the official Windows 11 25H2 ISO from the Windows Insider page, follow these steps:

Open the Windows Insider Preview Downloads page.
Sign in with your Microsoft account credentials.
Choose the “Windows 11 Insider Preview (Release Preview Channel) – Build 26200.xxxx” option in the “Select edition” setting.
Click the Confirm button.
Select the product language.
Click the Confirm button.
Click the 64-bit Download button.

After completing the steps, the final ISO for Windows 11 25H2 (build 26200.xxxx) will be downloaded to your computer. You can continue with the instructions below to use the Rufus tool to create bootable USB media.

The only caveat to using this option after version 25H2 is that you’ll download an ISO file that doesn’t include the most up-to-date files. Since this version of the operating system has been available for some time, I would recommend using one of the other tools instead.

Create a Windows 11 bootable USB using Rufus

To create a bootable USB with Rufus to install Windows 11 25H2, use these steps:

Open the Rufus website.
Click the link to download the latest version under the “Download” section.
Double-click the rufus.x.xx.exe file to launch the tool.
Select the USB flash drive from the drop-down menu under the “Device” section to create Windows 11 bootable media.
Click the Select button.
Select the Windows 11 25H2 ISO file.
Click the Open button.
Select the “Standard Windows 11 Installation” option under the “Image option” setting.
Select the GPT option under the “Partition scheme” section.
Choose the UEFI (non-CSM) option under the “Target system” section.
Specify a descriptive name for the bootable USB drive in the “Volume label” section—for example, “Windows 11 25H2 Setup”.
Use the default settings for the File system and Cluster size options.
Check the Quick format option.
Check the “Create extended label and icon files” option.
Click the Start button.
Clear all the checked options if the computer is compatible with Windows 11.

Quick note: Check the “Remove requirement for 4GB+ RAM, Secure Boot and TPM 2.0” and “Remove requirement for an online Microsoft account” options to create a USB media for unsupported hardware.
Click the Start button.
Click the OK button to confirm the deletion of the USB drive and the creation of the bootable drive.

After you complete the steps, the tool will create a bootable USB drive containing the Windows 11 25H2 installation files.

Alternatively, you can use tools like Ventoy, which allows you to create a bootable USB flash drive by copying multiple ISO files to it. You can even create a bootable media with the Command Prompt.

Pureinfotech’s Take

Downloading the Windows 11 25H2 ISO is simple, and most users will be fine using the official files from Microsoft Support for a stable and straightforward setup.

If you need newer builds or more control over the installation image, UUP Dump is a practical alternative. It lets you generate an ISO using the latest files directly from Microsoft’s servers, which can be useful for testing or setting up updated environments.

For creating installation media, Rufus remains one of the most flexible tools. Beyond writing the ISO to a USB drive, it allows you to customize the setup experience, including options for unsupported hardware and local account configuration.

In short, the official ISO works for most scenarios, while UUP Dump and Rufus offer more flexibility for advanced setups.

Update April 22, 2026: This content has been updated with new information, and it’s been revised to ensure accuracy.

Source: https://pureinfotech.com/download-windows-11-25h2-iso/#download_25h2_iso_official

Everything Windows 11

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5/09/2026

How to download Windows 11 25H2 ISO file