Windows 8.1 build 9405 (fbl partner out20)

Windows 8.1 build 9405 was confirmed by the WinJS version included in Microsoft.WinJS.2.0.Preview_1.0.9405.0. Screenshots of this build has also been released by WinPortal, WindowsArea, and HD Tecnologia , although their authenticity is dubious due to the lack of Start Button which was present in build 9391.