How about Windows Bob, that's got to be a top contender. Up until Windows 10 the normal Microsoft Tick/Tock was good/bad OS. That should have put Windows 10 as a fix for Windows 8, NOT! I just wish that rather than rounding the corners on things, they would actually fix things! It has been over a month since they broke my email, but at least it will have round corners? It's not the version of operating system I don't like, it's their constant breaking of their basic system that I'm tired of.