Thank you for the advice. I'll give it a try, although I recall the cpu switch being important, too, for Intel chipsets. I know the other items are for graphics and sound. Speaking of which, do get Win10 bleed through when the Win 10 focus assist kicks in, but is usually cleared by pressing escape button.
I'm a zero dark thirty sort, so it's lights out after I walk the perimeter. I'm about half-way through Allies Dec 8 turn. I'll finish it tomorrow and run the turn, then play with the switches again. I really would like to get that full screen window, but without the buried bottom bit.
I could swear the last laptop would run a full screen, but it was much slower, and has been converted to Linux distros, regardless.
Thank you to everyone who posted in this thread and others on the subject. I wouldn't have been able to get the game working without it.