The new Windows 8.1 update will cause the OS to automatically boot to the desktop if you’re using a keyboard and mouse system which is great news for many people who hate the Modern UI. Also, it installs two new buttons on the Start screen next to your username — Search, which opens the Search charm, and Power, which lets you shutdown, restart, or send your computer to sleep.
Read more here – http://betanews.com/2014/04/02/windows-8-1-update-will-be-available-on-april-8-heres-whats-new/