Windows 10: weird rectangle in the top left that I can't get rid of

There's this rectangle that I used to be able to get rid of by going to my Performance Options and changing it but lately it hasn't being working and it won't go away until I restart my pc




:)

 

how do i get rid of a small grey rectangle in my top left corner?

Theres a small grey rectangle at the top left hand corner of my screen and i cant interact with it or get rid of it. The only thing i can do with it is change my wallpaper but then it flashes once. So it disappears for a second then comes back. How do i
get rid of it?

 

how do i get rid of a small grey rectangle in my top left corner?

Its on the top left hand corner.

I forgot to tell you but sometimes my apps are gone and theres a second grey rectangle that i can move but when i double click it my apps are there again. Sorry i cant get a screen shot of that situation but that doesn't happen anymore. When i double click
the second rectangle the picture you see above this reply is what happens next and just stays like that.

 

Transparent rectangle in top right corner of screen

Hello I'm running windows 10 and there is a often a small transparent rectangle in the top left of my screen while my desktop is blank. When I double click it, it disappears and my desktop reappears. Does anyone know how to get rid of it permanently.