Again, 10?
Back in 2016, I swore off Windows completely and especially Windows 10. One of the reasons was a "feature" called Telemetry, that basically amounts to "Windows 10 is 100% spyware." It was widely reported at the time, along with an elaborate hokey-pokey you could dance to disable most of it. My choice was, "Aww, the heck with it" but many people chose to continue. Now we have the "1709" or "Fall Creators" update before us, and guess what? It's time to reinvent that hokey-pokey! Not only is all the Telemetry back on, but it's harder than ever to disable.
Recommendations for software products are popping up to help you manage this, but if software products were put forth that disable features of a non-spyware operating system the way these things do, we'd probably consider them malware. It seems that Microsoft has decided they can't make decent money selling consumer operating systems, so they will go all Facebook and sell all your data instead.
If you have been wondering why Win10 was free - or nearly so - now you know why. Only this is, if anything, worse than Facebook. At least Facebook can only get to things you decide to upload to it. Windows 10, if that's your operating system, has... EVERY-DAMN-THING!
So - hey - here's an idea. If you want a free operating system, I have a deal for you! Click on the cute penguin to get started.