Windows 10 build 9913

Windows 10 build 9913 is a build of Windows 10, which was shared online on 29 January 2015.

User interface

 * The hover effect on system tray icons has been updated to match the flatter taskbar appearance of build 9900 onward.
 * The new Action Center has been implemented.
 * The start menu received another refinement.
 * The Charms bar has been removed.


 * Title bar text is now left-aligned, similar to previous versions of Windows.
 * Caption buttons have been updated with a modern design and consistent sizing.
 * The full-screen button for Metro applications has been moved next to the maximize/restore button.
 * Metro applications now use a light gray title bar.
 * File Explorer icons have been updated.

Settings

 * Icons have been added to categories.
 * Many design changes have been made to further resemble that of the RTM.
 * Background options have been removed. They would be re-added in build 10056.

Miscellaneous

 * This is the first build to include Tablet Mode. It will be removed 6 years later, with Windows 11 build 21996.
 * New lock screen backgrounds have been added.
 * Several apps are no longer maximized by default when opened.
 * The Window thumbnail border bug has been fixed in this build.
 * Watermark text size has been reduced.

Installation
This build can only be installed on machines utilizing UEFI firmware since it hangs on a legacy BIOS system.

⊞ Win menu
The ⊞ Win menu in this build is broken. It is displayed with garbled korean characters and empty spaces.