Depending on the resolution of your screen, you can have up to four apps on a screen at a time. You can schedule meetings on your calendar while you respond to email, or record a lecture in class with Sound Recorder while you take notes in the desktop.
To use two apps side by side
- Open an app that you'd like to use.
- Slide in from the top of the screen until an opening appears behind the app, then drag the app to the left or right side.
(If you’re using a mouse, drag the top of the screen down until an opening appears behind the app, then drag it to the left or right.)
- Go back to Start and open a second app. It will appear next to the first app.
- To resize the apps, drag the divider between the apps.
To open a third app
If you go back to Start and open a third app, it’ll appear on top of the first two. You can tap or click the left or right side of the third app to replace one of the apps underneath it.
If you want use all three apps on the same screen, drag the third app until an open space appears next to or between the other apps. If a space doesn’t open, your screen can only fit two apps at a time.
Picture Source :http://www.extremetech.com/computing/151555-windows-blue-features-leaked-its- windows-8-with-more-snapping-less-desktop