After returning the first machine I bought with a factory installed Win 10, I searched for and found one from a different manufacturer that seems to run better. I've found ways to configure things to look very much like Windows 7 and to decline to participate in any "sharing".   

So far my 16 year old version of MS Office runs on it, as do my old versions of PrintShop, PaintShop and Picasa. I even found a place to download my Win 7 card games with much nicer looking "cards" than those which come with Win 10. That's pretty well all I need to keep me happy.