UPDATE 3/27: Windows 10 build 17127 ISO files are now available for download for anyone looking to test the new version doing a clean installation or in-place upgrade.
Microsoft is releasing the official ISO files of the Windows 10 version 1803 for enthusiasts and developers to get their hands early on features and improvements. This rollout is not meant to install the operating system in your main computer.
If you’re already a member of the Windows Insider Preview program, you don’t need to download the ISO files for build 17127, as you can simply use Windows Update from the Settings app.
Every time a new flight becomes available for the Windows 10 Spring Creators Update (version 1803), or for another version, you can now get the new build from this Microsoft website. However, Microsoft only makes available Windows 10 Insider Preview ISO files for builds released in the Slow ring (during Fast ring only occasionally).
Once you’re in the download page, you will need to choose the edition, and click Confirm to download. Once you finish downloading the official ISO file, you can use different tools, such as Rufus to create a USB bootable drive to install the operating system.
You can download the ISO files for Windows 10 build 17127 (Redstone 4), which is the latest preview available through the Slow ring. However, if you need to download a previous release, you can still download Windows 10 build 17115.
If you’re looking to upgrade your computer running Windows 7 or Windows 8.1, or you need to do a clean install of Windows 10, Microsoft is also making available the ISO files for the official version of Windows 10, which you can get using the Media Creation Tool or through the Microsoft support website.
For more details make sure to check out the complete guide to Windows 10 version 1803, which highlights all the new features and changes.
Originally published on April 2016, updated on March 2018.