With Windows 8.1, Microsoft has secretly changed the behavior of Modern apps when you close them. In Windows 8, when you dragged a Modern app from the top edge to the bottom edge of the screen, it got closed. But in Windows 8.1, when you do the same, you will be surprised - that the app does not get closed; it remains in the Task manager! Windows 8.1 keeps Modern apps in the "suspended" state when you close them. In addition,
Microsoft has also killed off all settings to tweak the close threshold for Modern apps as a result of which Winaero's CloseThreshold tool no longer has any effect see how to reduce distance to drag close Metro apps and speed up closing in Windows 8.1. But it's not all bad news, you are still able to close apps completely with a mouse gesture or swipe. Let's see how.
Move you mouse to the top most edge of the screen where the pointer turns into a hand. If you use a touch screen device, then swipe from the top edge to the bottom.
Drag the app down, but do not release it!
Finally, the app is closed! The proof of that is this time, the app disappears from the Task Manager and from your Alt+Tab/Win+tab lists, indicating that it is truly closed.
See the following video:
Of course, the good old, Alt+F4 keystroke still works to fully close a Modern app. They just made it a little bit harder to close apps using a mouse.
You might be curious, why has Microsoft added such a complex way to close Modern apps? Well, the answer is in my next article. Stay tuned.