Windows 8.1 build 9600.16596 (winblues14 gdr lean.140114-0237)

Windows 8.1 build 9600.16596 is a build of the Spring 2014 update for Windows 8.1.

Between 2014-01-22 to 2014-01-25, Russian and Chinese websites Win8China   and WZor.net  released several screenshots of this build documenting its new features, some revolving around the new right-click menus and minor changes to the Metro/File Explorer interface. This build later leaked to the Polish WinClub forums on 2014-02-02 under the x64 architecture.

The most notable change of this build is the ability to pin Metro apps onto the taskbar.

Changes from previous builds

 * Ability to pin modern apps to taskbar (Store pinned by default).
 * Search and shutdown buttons on the start screen.
 * This PC, Documents, and Pictures are pinned on the start screen by default.
 * Instead of metro bars (top and bottom) a context menu appears when you right-click an app on the start screen.
 * Apps now divided by the first letter in the "All Apps" view.
 * Internet Explorer 11.0.3 (with Enterprise Mode).

Internet Explorer Enterprise mode
The Internet Explorer included in this build doesn't have Enterprise mode enabled by default. To get it to work, create a DWORD HKLM\SOFTWARE\Policies\Microsoft\Internet Explorer\Main\EnableEnterpriseModeMenuOption and set it to 1. After that, launch F12 tools and in the Emulation section, go to Browser Profile and select Enterprise.