Windows 10 build 9909

Windows 10 build 9909 is a build of Windows 10, which was shared online on 29 January 2015. It is the last build to feature the charms bar introduced in Windows 8 and the last to have centered title bar text, which was first seen in Windows 1.0.

Changes

 * The new XAML start menu introduced in build 9900 is now enabled by default.
 * The Windows Update link in Control Panel has been removed.
 * Extended the timebomb from 15 April 2015 to 1 October 2015.

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

Window thumbnail border color error
If window auto-colorization is enabled, the window thumbnail borders on the taskbar do not change color even after the wallpaper changes. This issue can be remedied by manually changing the window color through the Control Panel or restarting Windows.