I just switched my entertainment computer loaded up with Win 10 that does not have a processor that can be upgraded. MicroSoft already deleted and WIPED my Win 7 Pro hard drive without my permission, before loading Win 8 home. When a storm took it out last week, I replaced it with UbuntU mini-computer that attaches behind the big screen.
Linux is the way to go. It has reached the point that it is as user friendly as Windows and can run most Windows software if needed (sometimes better than Windows itself).