How to deactivate Telemetry on Windows 10
win + R
gpedit.msc
Computer Configuration > Administrative Templates > Windows Components > Data Collection and Preview Builds
Double click: "Allow Telemetry" and alter the setting from "Not Configured" to "Disabled". Results show after restart.
From admin cmd (command prompt)
sc config DiagTrack start= disabled
sc config dmwappushservice start= disabled
Results show after restart.
MUD - Make Use Of: https://www.makeuseof.com/windows-10-11-disable-telemetry/
According to makeuseof.com article:
Is It Safe to Disable Telemetry? Yes, there are no inherent risks to disabling telemetry. Microsoft uses telemetry to collect data from users with a goal to improve user experience with future updates.
DiagTrack: https://yoodley.com/diagtrack/