Someone told me that Windows 10 uploads files on your hard drive to a Windows Server to see if any of them have been pirated and downloaded from torrent trackers. That Windows 10 can remove pirated software, and even delete pirated files on your hard drive.
Windows 10 has created such paranoia that some Private Trackers ban Windows 10 clients: https://torrentfreak.com/torrent-trackers-ban-windows-10-ove...
When I upgraded to Windows 10 I turned off the data sharing settings. I am considering going to Linux and running a copy of Windows in Virtual Box. I'd use the Steam client for Linux and only play the video games that got ported to Linux. I haven't done this yet, but I have to turn off SecureBoot to get GRUB to load.
If not I'll try Mint or Lubuntu.
(or, alternatively - why download mystery executables from the internets, just let Windows 10 do that for you!)