I totally agree, after several hiccups back to Windows 7 twice, I found the culprit to be Norton, uninstalled Norton, I also found with Windows Defender, everything seems to run very solid. there is a learning curve however when you have to deal with three different computers.
I'm one of the people who missed the deadline for the free upgrade to Windows 10. Long story short, I procrastinated and was traveling overseas on the expiration date and forgot all about it. Of course, no one to blame but myself. I was planning to wipe my desktop clean and start fresh with Windows 8.1 again, but since I was going through that process, I figured I might as well move on to Windows 10. However, before I go download and pay for it, I'd like to get your opinion on it since many people have been using it for quite some time. Do you love or hate it or are you somewhere in between? Any reason not to upgrade to it? If I do get Windows 10, do you recommend that I do a clean install from scratch, or should I install it directly over Windows 8.1? My system hardware requirements are more than capable of handling 10, and my software programs are fairly current so I'm not worried about the incompatibilities. Thank you for your feedback.
--Submitted by Peter M.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic