Windows 10 Build 10159 was just released to Windows Insiders, and includes a brand new, sexy login screen for users when turning on their PC. The new logon screen features your desktop wallpaper, and your profile is in the middle of the screen. This is the new, defauly login screen in Windows 10 and is what millions of PC users will experience every day.
General use of the login screen remains the same, you type your password and login. You've still got WiFi, Ease of Access and Power Options in the lower right. The UI looks a lot cleaner and a lot more modern for an operating system in todays standards. You can check out the video of the new lock screen in action below!
Thanks for the tip, @DoubleLuckstur