Waking up your PC from sleep is as easy as tapping the touchscreen, moving the mouse or pressing a button on the keyboard -- but if you have a Microsoft Surface Studio, it just got even easier. Thanks to a new audio driver update, Studio owners can now wake their machine by simply calling out for Microsoft's digital assistant. As long as you have the Windows 10 Creator Update and the latest patch, all you have to do is say the assistant's keywords: "Hey Cortana."