New Computer stress

i've had a new pc for 6 days and it has done little except update for all but 7 or 8 hours.

It's just about totally locked up. Can browse lightly, meaning delays in everything. Not pauses. Delays.
It doesn't tell you what it's updating, only after the fact did I learn the first night was about Win10 updates.
Everytime I get a half hour going good, it starts all over again. I think it's mcafee. I am just furious at it. Everytime
I backspace a few letters because I mistyped, I have to wait 3 seconds.

I'm thinking of repairing my old Vista machine with parts, mouse, drive and battery, and installing Linux. That ran well
from 4 megs of RAM and a DVD boot - no hard drive! Ok it locked up every 4 hours from the memory cache being
filled, but still, it allowed me some sanity.

ALso seriously considering ditching Verizon in favor of wifi public library access. THis is not worth the aggravation and cost.