It really baffles me how big the misconception about Telemetrie on Windows 10 is, even thought it's all written in the Terms.

There is simply no such thing as disabling, and even the lowest option (which is only available for enterprise users anyway) that only reports errors includes paragraphs that mention that everything could be leaked, when it is somehow involved in a error.

IMO at the current state Windows 10 is definitely illegal to use in security relevant environments, as it could potentially leak anything.