Windows 8.1 build 9600.17415

Windows 8.1 build 9600.17415 is the official RTM build of Windows 8.1 Update 3 released on 19 November 2014. It was again planned that a Start Menu would be implemented and support for windowed Metro apps would be added, but only the Start Menu was implemented for Windows RT on Surface 1, 2. The x86 implementation of this feature would appear in Windows 10 build 9780. This update was released for ARM devices on 1 September 2015.