Bilbo, they won't just track you and look into your information if you're doing something illegal, they'll do it anyways.
www.slate.com/articles/technology/bitwis...ow_to_plug_them.html
The amount of times I've spread this link is unreal, Microsoft have gone too far people, their privacy issues are fucking horrendous, they sell your information for damn sakes.
TL;DR, don't get Windows 10.
Also, I owned Windows 10 on my Laptop, I had extremely slow loading times, when it was a brand new laptop. No reason for it to load slow other than Windows 10 fucking it over. It's not even a bad laptop either.