So? Siri is mandatory by the Oh Mighty Apple on my iPhone. And I do not use the annoyance.
I can disable Siri. And have done so. The new version for Craptana will not permit one to disable - it replaces the search engine (and presumably sends data to MS monster.
So, I went ahead and updated my two remaining Windows machines. It is a pain in the arse. It took far less time to download and install than it did to find and disable as many of the privacy-sucking settings as I could. And you have to do that for each user.
Even with that, i get about 10 popups from my firewall program per day asking permission to access Cortana server, MSN, telemetry servers, etc. with Microsoft. And blocking some of those will block other network access.
Half the time it won't find my NAS box. Restart Windows, and it is discovered. Block certain MS processes and it's not found.
MS pushes you to their apps. Every time I try to open a file that has a (prior) default setting, it asks me if I want to continue with that app or use one of MS apps.
Then there's the whole automatic update issue. Yes, you can defer certain updates in W10Pro, but not all of them.
Bottom line: this is likely to be the last Windows machine I use. It's turned into a bigger pain in the rear than it's worth.