[WPCentral Question]

basically, how do I close windows 10 in windows 8 there was an icon hidden in the upper right hand corner, where is it in windows 10?

[Nabkawe5]

What! :)
If I assume you meant shutdown then it is at Start / Power / Shutdown
If I assume that don't see the close button on windows its probably because you have tablet mode on, you can close apps by sliding them from the top to the buttom, if you didn't enable tablet mode intentionally you can disable it by clicking on the action center icon (buttom right looks like a message bubble with text in it, clicking on the Expand button, then disabling Tablet Mode.)

[Nabkawe5]

Here's a helpful pic by pic tutorial