Thank you for joining the Intel communities.
Did this happen once you upgraded to Windows 10 or did you run the update for the Windows® 10 Threshold 2, we have seeing some issues as you can see at the following link:
Do you see full screen cutted in the corners when you’re in the desktop or when you are watching videos or movies?
What are you using to watch movies, videos etc?
Try reinstalling the graphics driver you can download it at the following link:
I used K-Lite Codec and I did not have any problems as you can see on the picture below.