On my new Dell Windows 10 PC, “Show Windows Side by Side” used to show two windows stacked, not “side by side”. There were lots of complaints about it all over the internet. Suddenly, now on my system, “Show Windows Side by Side” DOES work with two windows shown side by side except that the two displayed windows only occupy two-thirds of the screen. The desktop is shown in the other third of the screen. Is there any way to make two windows shown side by side to occupy the entire screen? (This is the way it worked on Windows 7) Thanks for any suggestions.