Windows 10: The two squares in the upper right cornor of my screen no longer work.

The two squares in the upper right cornor of my screen no longer work. Now every screen is full screen. Even the ones that are not greyed out do nothing.

:)

 

Small white screen squares upper left of screen

I accidently hit a button, prob alt, and now I have small screen squares in the upper left corner of my open screens. How do I get rid of them?

 

Lost Upper Screen Desktop Shortcuts


I do not how or why but last night the list of web sight and W10 shortcuts disappeared from my upper desktop screen. Now when I log on the W10 pinned boxes/apps page appears. How can I get the shortcuts back on my desktop upper screen? Please note that my shortcuts are still listed on the bottom line of the desktop as before.

Thanks

 

Windows 10 Black Box in Upper Right Screen

Hi, I have searched help and none of the answers have helped me. I have a 1" square black box in the upper right of my screen, with a second mouse pointer in it. My main mouse pointer goes all squirrely and fades in and out. I have tried doing a clean
boot, checking my display settings, nothing gets rid of the dang thing. Help!