We have analyzed numerous user reports and reference to find that the black box problem is often caused by an obsolete display driver. The black box in Windows 10 is also caused by corrupted system files and improper brightness settings.
Flashing Black Box in Window 10 - The black boxes that appear on your computer screen could be caused by a variety of factors, including damaged Windows files, outdated drivers, dual graphics cards, or faulty brightness settings. Below are a few ways to stop the black boxes from flashing on your screen. These methods can be used one after another to determine which one is most effective for you. office.com/setup365
