complete close store apps

[RBS]

is there a trick or setting that will completely close and flush an app so it is not setting around, ready to pop up?

Right now all I seem to do, is use task manager, to completely end the task.

 

[juvat]

While still in an app and I want to close it, I slide my mouse courser to the top of the screen. A slim black drop-down appears, and in its right corner is an 'X'. Clicking on the 'X' closes the app.

 

[Bree]

is there a trick or setting that will completely close and flush an app so it is not setting around, ready to pop up?

Right now all I seem to do, is use task manager, to completely end the task.

You can uninstall a Store app.

Apps - Uninstall Modern Apps in Windows 8