Windows 1o will not recognize that I have Flash installed when I try to use it.  It's in the 'apps' screen, but it won't let me use it as a default.  I use it to watch aircraft maintenance (EAA.org) and photography education videos B&Hphoto).  Everything worked fine until I upgraded...as far as I'm concerned Win 10 [watch it]!  How do I revert to Win 8 or 7???
				
			
				
		