Windows 10/6.4.9841.fbl release.140912-1613

Windows 10 build 9841 (with a build tag of 6.4.9841.fbl_release.140912-1613) is a pre-release build of the Microsoft Windows 10 operating system. Screenshots originally leaked on September 18, 2014. The build was demonstrated by Microsoft on September 30, 2014, and released as a technical preview on October 1, 2014.

Features

 * New Start menu, containing elements from Windows 7 and 8.1,
 * New Multi-Desktop mode, allowing users to 'have' multiple desktops,
 * New Search panel on the taskbar,
 * PC Settings has been updated, introducing placeholders for new features such as Battery Saver and Data Sense,
 * Allows a fallback to the Windows 8.1 Start menu (allows users to switch between the Start menu and the Start screen),
 * New Windows Insider app launched for Windows Insider members,
 * Store apps can now minimize and maximize like a normal desktop app in Windows,
 * Charms bar does not work in the Start menu mode anymore, instead it can be selected from the list of options on the upper-left corner of the app (also new),
 * Allows Windows to update automatically to newer builds.