I was a Norton User for sometime and i remember very well that Spybot and Norton cause issues..
In Norton Forums its recommended not to use as the Tea Timer component causes plenty of issues.
Norton 2013 is not great.As far as AV goes Security Essentials has failed again I`m using it cause I`m behind a firewall(college) and pen drive threats is all I have to worry about.
I have asked the question in this community time and again regarding if free is necessary or not and the answer is Paid have a few extra bells
Do you need those bells that Decision is upto you.Back Home my experiment with a free AV was very bad.
So My experience was bad and the thing I summarized was what was told by the experts of this community what AV to choose depends on the person
Norton Antivirus 2012 slows down you computer when compared to the Internet Security Suite
If you are gonna Buy a paid suite you should try Bitdefender(slows system a bit) or Kaspersky(Windows 8 Issues)
Both have excellent rating in various Testing done by avcomparitives or AV-test you should take a look at them these are cheaper than Norton too.....
Eset Is another Choice I found it to be the lightest quietest of the lot although it has not done well in AV-test when compared to Kaspersky/Norton/Bitdefender
but My friends have used and have not faced any issues so far.
Edited by midou1994, 03 February 2013 - 07:09 AM.