I have to build some computers for homeless teens. I'm
unsure if we'll be able to get W7 licenses (MS has tried to
dry up the availability of older OS's to push everyone
to their latest).

W10 allegedly is rife with spyware ("data collection"
that MS no doubt uses to sell *you* to THEIR customers;
you are no longer a customer but, rather, a commodity).

Does anyone have first-hand experience with how pervasive
this is? And, if there are *reliable* ways to disable it?

Finally, how much risk these students will later be at
(for it to reintroduce itself to their machines) as they
accept future updates.

[I prefer to lock-down these sorts of machines so the
student doesn't come looking for "support" (from me)
later when an update mucks something up...]

[[I'm sorely tempted to install a FOSS OS but figure that
would leave them even farther out on a limb...]]