Re: Services.msc
sc stop diagtrack
sc delete diagtrack
stick those two lines in a .bat file and put that (or a shortcut to it) in your startup directory, or otherwise run it automatically at boot time (there are a number of ways to do this). That way, at each boot, it will stop and remove the spying service if it's there. It only takes a fraction of a second (in windows 8.1, anyway)... just a nearly instantaneous flash of the command prompt window and it's gone.