Mem
Lifer
I think once you start shutting off privacy features is when 10 starts complaining. I definitely had cortana off, also a whole bunch of other privacy settings. That's probably a lot of the errors I was seeing in event viewer. Because on 7 it's clean, as in no errors at all.
It'll be interesting to see what happens to privacy/tracking telemetry on Win7 for users that install all the updates, I think it's going to be a common theme since both Apple and Google have been doing it for awhile and Microsoft have jumped on the bandwagon for 10 and also with 7/8.