UPDATED 9/10/2025: The Windows 11 build 27924, 26200, and 22621 ISO files are now available for download from the Microsoft support website to test the latest features and improvements using either a clean installation or an in-place upgrade.
The company has released the official ISO file of Windows 11 in the Canary, Dev, and Beta Channels, allowing developers and enthusiasts access to the enhancements expected to be released in future versions of the operating system. The ISO contains the latest preview, which means it is not intended for installation on your primary computer.
If you are already a member of the Windows Insider Preview program, you do not need to download the ISO file for builds 27924, 26200, or 22621, as you can use the “Windows Update” settings to download the most recent flight.
Windows 11 build 27924 ISO file download
To download the latest preview build of Windows 11, log in to this Microsoft support website. Once on the download page, select the desired edition and click the Confirm button to initiate the download.
After downloading the official ISO file, use tools like Rufus to create a USB flash drive to install the operating system. Alternatively, you can mount the ISO to begin the setup if you plan an in-place upgrade.
- Windows 11 build 27924, 26200, and 22621 ISO | Download
Alongside the availability of build 27924, Microsoft is also making the same build as part of Windows 11 24H2 in the Dev Channel.
If you are looking for the latest build release or any other build, it’s possible to create a custom ISO file using the UUP tool.
Update September 13, 2025: This page has been updated to ensure accuracy and include the latest information.
Mauro Huculak is a Windows How-To Expert and founder of Pureinfotech in 2010. With over 22 years as a technology writer and IT Specialist, Mauro specializes in Windows, software, and cross-platform systems such as Linux, Android, and macOS.
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