After many years of using Avast (with brief trials of other AV - no good) I got so fed up of all this, plus the RAM taken up, that I turned the Comodo Firewall into the full protection.
I do miss some of Avast, though having >300MB of RAM is handy; also some apps. are a bit slower to open, but now no nags at all and no sneaky 'offers' that don't mention £££!