PIP (Picture-in-Picture) is a feature that enables you to watch two images at once, by placing a small window inside the main window. Dell monitors include this feature to enable you to view multiple types of content at the same time. If you are no longer using the PIP feature on your Dell monitor, however, you can turn it off quickly and easily without going through any complicated setup processes.
Turn on you Dell monitor and locate the "PIP/PBP" button. The button has an icon of a square with a small black square in it.
Press the "PIP/PBP" button repeatedly to scroll through the different options. Press it repeatedly until you select the "Off" option to turn off PIP.
Turn off your monitor or continue with normal use.