you can turn off services you don't want to load(1), and prevent applications from starting up at boot(2) easily enough, you can even run a shut-up windows 10 that will turns off all the telemetry from running(3).
(1) click on start, run, type "services.msc" and be careful turning off the application (right click on service and set it to off and not auto)
(2) get CCleaner, runs it, click on tools, and startup, highlight what programs you don't want to run, and select disable. that way if you realize later you need it you can reverse it to enable.
(3) get oosu10 "O&O ShutUp10: download free antispy tool for Windows 10" run it accept suggested changes and voila. , if your meticulous you can go down the list of things you can turn off, but understand some things like search and Cortana for example are connected so when you turn off Cortana search is crippled. but the program will warn you as you choose options.
reboot and enjoy.