I think you need to be more specific here. If you mean norton antivirus then it is probably checking for definition updates and loading them BEFORE it runs so that it may catch any new virus you may have downloaded.
AMD Radeon Adrenalin release date, new features, compatible graphics cards
8 brilliant character artists speaking at Pictoplasma 2018
iMac Pro release date, UK price & specs
Football : comment regarder la Ligue 1 en direct ?