there is NO way to opt-out of windows 10 spyware. it is designed to phone home constantly.
my suggestion is to switch to Linux."Ubuntu" and "Mint" are popular and very windows like. i use "Linux Lite" on a HP laptop,

my experience with anything Dell has not been good. i worked for dell when they upgraded the nashville facility. they used their own computers to operate the whole place, they could not keep them up and running. that facility shut down every other facility worldwide when their system crashed. it took almost a week to fix that mess.
if you have "upgraded" to windows 10 fret not they will have a work around available in a few weeks (maybe). you're lucky "10" didn't turn your pc into a brick as it has to MANY.
my recommendation is switch to Linux. the Mint edition is very windows like. it can be run from a thumb drive to test it and get used to the terminology then if you want install it to your hard drive alongside windows. they do not interact in any way.
my nephew is running "Ubuntu" on a dinosaur and is really satisfied with the way it functions. i just started using "Linux Lite" on my HP laptop. i have had no problems with it at all. it is faster and has a smaller footprint and very light on resources. my harddrive hardly comes on as opposed to windows, which made it run constantly. with the "Lite" version i have access to all of the "Ubuntu" repositorys and forums. i don't know if "Mint" has the same access. i am very happy with "Lite" and am 95% sure windows will be coming off this machine in the very near future. i think you would be happy to make the switch. LOTS of peopl are making the switch. oh i almost forget Linux is Free!