Invisible additional display / monitor

My computer acts more or less as if he took a third attached to it, (he currently has two). So when you drag windows they can be moved to the side of the screen on the one that is not visible physically, and sometimes apps open in this third window which is very frustrating.

The attached pictures show that my system recognizes three monitors, while the control panel windows recognizes only two. Please help me delete this third view.

[SOLVED] I installed an application some months ago that I had recently updated. It was iDisplay, a program that allows you to use your Ipad as an additional monitor which, after updating, decided to become a permanent monitor, not only who was added after I launched the app uninstall it solved the problem.

Tags: Dell Peripherals

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