grey rectangle on desktop
A grey rectangle appeared on the center of my desktop, how do I get rid of it?
It's a grey rectangular outline that doesn't move or react.
MacBook Pro with Retina display, iOS 10.1
System Preferences > Accessibility > Zoom > Options
Click the Options button.
When the dropdown appears, uncheck the box beside "Show preview rectangle when zoomed out.
and then the "OK" button at the bottom right corner.