rtcvb32: My opinion is to ignore windows 8 & 10 and use 7 if you're going to.
edit: Some of it might be over privacy concerns, but the performance seems to be getting worse with updates. I know at least a couple streamers who have had horrible performance not only with them seeding the updates, but with just getting worse where they had to re-install a base Windows 10 and then prevent updates from happening to keep the
AU update from going through, and then the games and programs were working 10x faster. Maybe that's for the specific laptop I don't know.
The culprit of this is a feature called Game DVR, that was preactivated in the AU (or at least, is was happened to me). If you deactivated it, you gain a lot on performance, specially in games, because it limit the maximum FPS.
The bad? In order to disable this unwanted feature, you need a MS account to log in in the xbox app, because isn't any order way to disable it.