An early build of the upcoming Windows Blue has reportedly leaked to the web, allowing users to try out the first major Windows 8 upgrade a lot sooner at absolutely no cost.Windows Blue comes packed in a 2.63 GB ISO image that's called 9364.0.FBL_PARTNER_OUT13.130315-2105_X86FRE_CLIENT and is apparently aimed at 32-bit workstations exclusively.
According to a report published by Windows9Beta, the leaked ISO comes from France and is part of Milestone 1, the first of the two important development stages for Windows 8's refresh.
This Windows Blue version is labeled as build 9364 and was sent to Microsoft partners for testing purposes, so several bugs and issues are very likely to be experienced. The ISO is currently available for download via file sharing websites, but in keep in mind that Microsoft provides no support for any damage caused by this build.
If previous reports are true, the final build of Windows Blue should be here by August, while the first public beta of the operating system could see daylight in June.