I use several different OSes here. Win 98SE, 2K, XP, Vista, and 7. As well as Mac OS 7, 8, 9.2.2, and 10.4.1.1 (I think). I also use my Amiga computers which have OS 2.0, 3.0, 3.1, 3.5 and 3.9. I even have an old PC that has OS/2 Warp on it. I am no good with Linux but I do try to play with the distros from time to time. I even have (Blasphemy!!) an Atari MegaST 2 with Tos 2.something in it. The only OS I have used that I have had any problems with was Vista. I always likened Vista to a 2 week dead pig lying in the sun, its bloated skin stretched to the point of bursting from all of the noxious fumes inside. Well that's how it felt to me, and I have a fairly okay system. An OS is merely a tool to access the programs that you use most frequently. They are supposed to be designed to not get in the way and to maximize your experience. If someone came out with an OS tomorrow (looking at google...) that allowed me to do everything I do with my Windows box (mostly games, but I am trying to make an old adventure game...) then I would more than likely check it out. If it didn't get in my way. {shrugs} I'd use it.