Downloaded W7 Home Premium, installed and activated it, works great, without all the OEM clutter and junk. All necessary drivers were available on Acer's website.
Just for shits and giggles, I downloaded Windows 10 Pro 64, Build 10061, and installed it on my desktop. Look and feel takes getting used to, but so far it is very functional, a much nicer , tho a little more complicated than the Win 7 HP or Pro, interface.
Will give bugs found and updates on it in general as they develop.