Windows 8.1 build 9600.17031

Windows 8.1 build 9600.17031 is the RTM build of the Spring 2014 Update, also known as Update 1, for Windows 8.1. It was released on April 8, 2014.

New features (on non-touch devices)

 * When you hover over the top of a Metro app, Windows shows a title bar with minimize and close buttons.
 * Right-clicking on the Start screen opens up a menu instead of the touch-oriented controls at the bottom.
 * You can pin Metro apps to the taskbar.
 * A power button has been added next to the search button on the start screen.
 * SkyDrive is renamed to OneDrive (you can also get this in Windows 8 and Windows 8.1 RTM (without Update 1) by updating the SkyDrive app via the Windows Store).