I don't expect an official answer at all. I'm simply wondering how you formed your opinion as you seem pretty adamant that "you cannot block windows telemetry using a windows firewall". I've not seen a single post or article on the internet from someone who has actually tested and found Microsoft executables bypass windows firewall. I'm happy to be corrected if evidence exists. If windows processes don't bypass the firewall then I wonder (thinking logically): If someone uses the Microsoft update catalog server to download and install updates offline, and blocks all Microsoft executables from accessing the internet via windows firewall. How does Microsoft send telemetry to its servers? Thinking logically, maybe you can block windows telemetry using windows firewall?