Disable Telemetry and Data Collection in Windows 10 Home and Windows 10 Pro
open regedit and go to
If you do not have such a Registry key, then just create it.
There you need to create a new a 32-bit DWORD value named AllowTelemetry and set it to 0.
Disable a couple of Windows services
Go to Services and Applications -> Services in the left pane. In the services list, disable the following services:
Diagnostics Tracking Service
Win-I -> Settings -> Privacy - Feedback and Diagnostics -> is grayed
This should prevent Windows 10 from spying on you.