Here are some links to start cleaning up and taking care of your computer privacy.

Do not hesitate :

A bit of anonymity on operating systems :

PRIVACY & security MYTHS that need to die! :

a little cleanup:

Autoruns - Nettoyer Windows des applications inutiles

I keep control :) of who comes out :

Simplewall - Block Windows Telemetry and more!

It's not bad to start.

A very interesting site on windows and not only

I will share for the next interesting subject to develop.

Have a nice day, and may the crypto be with you.