I'm not into the bandwagon, and even I know it is a bad OS. Aside from the plethora of privacy concerns, many of which are way too ambiguous to even be examined, there are a lot of compatibility issues with legacy software that result in a lot of broken applications and complaints about this on services such as Steam. Telemetry and other intrusive environments do not help matters, the updating issues reported since its pre-launch release are evident in articles and videos by users, the UI changes the overall workflow too drastically to reinvent the wheel when the wheel was just fine (such as Win7), and there's too much involvement/dependency on the cloud, which aside from the obvious privacy concerns can also suffer from connectivity issues. All of my points only scratch the surface. Deep down Win10 is not a viable OS compared to its predecessors. It has succeeded in being the unwanted follow up that Vista was, and like freak777power said, I and many I know and discuss this with are eager to see this misfire laid to rest so we can see if the next OS MS hatches will be a better, safer, less intrusive experience.