Windows 10 build 18277.1000

Windows 10 build 18277 is the twelfth public build of the Windows 10 May 2019 Update (codename 19H1) development branch that was released on 2018-11-07 to Insiders in the Fast ring.

New features

 * Focus Assist can now be enabled for when you're using any app in full screen mode
 * A brightness slider has been added to the Action Center
 * Quick actions in the Action Center are now customizable
 * Some emoji from Emoji 12 have been added to the OS
 * The "Let Windows try to fix apps so they're not blurry" setting is now enabled by default
 * You can manage access to camera and microphone in Windows Defender Application Guard
 * Japanese IME has been improved
 * The Storage settings page has been improved
 * Other general changes, improvements, and fixes