Anecdotal, I know, but a few times I've UNinstalled Norton on my father-in-law's machines, replaced with either AVG or Avast, and stopped its incessant HD activ

Anecdotal, I know, but a few times I've UNinstalled Norton on my father-in-law's machines, replaced with either AVG or Avast, and stopped its incessant HD activity, speeding it up quite a bit.