A new Snap Assist feature also helps users work out which way is best to snap apps to. You can snap windows into new screens and tile Windows - just as you've been able to since Windows 2.0 or maybe 3.0. When you snap an app with the mouse on Windows 10, the new “Snap Assist” feature will pop up. Windows will display a thumbnail list of your open windows and let you click one of them. Click one and it will be snapped to the left or right side of the screen. It’s much faster, simpler, and more intuitive than the Snap feature on Windows 7 and 8. If you Snap a window on Windows 7 or 8, Windows will just display the empty space there and wait for you to snap a second app.