Here's a brief summary of what you can do with apps. Be sure to check out the following short videos and instructions to learn how to do these things with touch and a mouse.
App commands. When you’re using an app, you’ll probably want to do specific things with it. To see the things you can do, bring up the app commands.
Use two apps at the same time. You can use two apps at the same time by snapping them, which means that you see two apps on the screen at once.
Switch between apps. You can return to an app you were just using or quickly switch through other recent apps.
Close an app. When you’re not using an app you opened from the Start screen, Windows will eventually close it. But you can also manually close an app if you want to.