Sounds like you are as cautious as I am with info on your computer.
Every time I buy a new computer I methodically go through and delete or disable everything I don't want/need, change what services I can to manual, delete questionable preloaded programs (like Cortana), disable all remote connections, etc. Every time I run an MS update, I recheck to ensure MS hasn't turned on any service I don't want turned on.
I also immediately install WinPatrol on any new computer as it alerts me if MS tries to change a program (MS contantly tries to reawaken OneDrive, and WinPatrol warns me so I can refuse this program as I don't want my info in the cloud).
Also, for years I have been following BlackViper's suggestions re services. See:
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