With Windows 7, I could check for updates when on wifi and download them “free”. With 10, I’ve had a couple of days when 600 megs downloaded while I was tethered to my phone — that’s several days worth of my typical usage.
This is MY computer, not theirs to take over whenever they want to "upgrade" some damn thing I did not ask for.
BBB
Bob - do yourself a favor and configure your tethered connection as “metered”. That way when you are connected to your phone you won’t experience patching downloads.