I have installed Norton internet security 2011, Virus signature 31 days older, when I tried to liveupdate it shows 84Mb, so I decided to download virus definition from http://www.symantec.com/business/security_response/definitions/download/detail.jsp?gid=n95
20100912-005-v5i64(for 64 bit os), size 78 Mb
I installed virus defintion and it was successful. Again I checked Liveupdate but it shows above 60Mb. Please tell me what is the reason of big update size shows when trying to Liveupdate, I alredy installed 80Mb update. I have 64bit windows 7.