...oh, crud...why, Jebus, why???...ya didna install that Norton crapola in yer rig yet, did ya???...chalk full o' holes an' a resource hog like noone's business...ya'd 'ave been faaaaaaaar better off wit' Kaspersky, Trend Micro, etc...send it back, laddie; send the bugger back!!!...
...WHO LUVS YA, BABY!!...
Fwiiw, I have recently migrated all of my rigs and clients to Avast 4.7 Home Free Edition. Smaller footprint and much more manageable UI, imo. As well, there is the Professional Edition for those in the business sector.