Download Windows 8.1 Preview ISO image from Microsoft

Download Windows 8.1 Preview 780_wide

After months of waiting, leaks, speculation and rumors, Microsoft today from the BUILD conference in San Francisco announces that Windows 8.1 Preview is ready for download. The preview is primarily available from the Windows Store, but for those that cannot wait another second, Microsoft also made available a Windows 8.1 Preview ISO file that anyone can download and install when convenient.

Before installing the update (formerly known as Blue) in your primarily PC, I highly recommend to read my previous article How to upgrade Windows 8 to Preview, to Windows 8.1 RTM, because upgrading to the Preview will have some consequences later on when the time comes to install Windows 8.1 RTM.

Download links

Important: If you download the Windows 8.1 Preview ISO image, you’ll need this product key: NTTX3-RV7VB-T7X7F-WQYYY-9Y92F.

SEE ALSO: Microsoft demos Windows 8.1 devices, apps, and a new Windows Store

BUILD keynote live stream info

If you are planning to watch BUILD today, Microsoft will be streaming live the keynote at 9am PDT on Also follow the #bldwin hashtag on Twitter to be up to date on all the information about Windows 8.1 Milestone Preview and related topics such as Windows Server, Windows Azure, Visual Studio and more.

Which features are you looking for the most in Windows 8.1?

About the author

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 14 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and