How to get rid of overlaying box with arrows forming a circle in all windows and menus of UE4?

There is a grey box with two white arrows forming a circle (similar to refresh symbol) in the lower right corner of every window and menu in UE4, even when rendering from the cinematic sequencer. See the picture below.
Does anyone know what is causing this and how I can remove this symbol, so it does not continue to get in the way when I’m working or rendering a video from UE4?

this is nvidia shadowplay, not ue4 ^^ you have to disable it in geforce expierience :wink:

Now I just feel plain silly. I couldn’t for the life of me remember why the symbol was so familiar. Thank you for the help.

welcome to the club , i searched my smartphone one day 5 minutes long with a flashlight of my …smartphone :smiley: