How do I get rid of PERMANENT active windows live previews

[Windows Central Question]

Everyone knows about the Window previews introduced with Aero when you hover over the task bar. I have (inadvertently) found ANOTHER ONE. Through some unknown typo, I have activated a permanent preview LIVE Thumbnail of ALL active windows on right side of my desktop. It seems I cannot delete them, do not know how to turn off feature (I HATE IT). I cannot even move them off of the desktop, they simply return and any new windows opened simply make things worse by creating another one. Can anyone tell me how to get rid of these? They are filling up my desktop and I do not like showing a live copy of everything I am working on, on my desktop. This is the 3rd forum I have posted on. No help on 1st two.