Microsoft Windows 9 was already being rumored and now a new leaked build seems to confirm the whispers. While the leaked screenshots show a Windows 8.1 Pro watermark, from past experiences we can safely assume that to be the case with very early alpha builds. The new "Hybrid Start Menu" appears to be a mix of the legacy start menu with Metro portion integrated into-it as tiles. Also, it is to be noted that this build 9788 having Windows NT kernel version 6.4 (which is the next kernel version hence Windows 9 not Windows 8.2), which was compiled on July 4 has got no ISO's available/leaked on file-sharing and torrent websites for download so the origin of the leak should be inside Microsoft.