content: I think it's the specific "contents of your disk sent to MS" claim that's based on paranoia, because it is.  That portion of the EULA specifically mentions MS services, which specifically means something on servers. In other words, if you put data on Microsoft's servers through OneDrive, email hosted by them, etc, they have the right to access it should they feel the need to, even if it's in a private folder, otherwise know as any folder not marked public. This is pretty much the same as most any cloud storage service EULA. The hype is real.  The claim is false, or at least entirely unsubstantiated. I haven't met anyone who actually knows how things work who hasn't thought this claim to be pretty ludicrous.