Hi, what Anti Virus do you use, and does it also have a firewall? Have you ever had another Anti Virus util on this computer in the past, if so what product was it? Have you cleaned out your cookies and url history?
Go to search and type:- command prompt, right click on the returned command prompt and select "run as administrator" an elevated cmd prompt will open, copy the below text into the cmd prompt window:-
echo > 0 & systeminfo | find /V /I "hotfix" | find /V "KB" >> 0 & WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /format:list >> 0 & wmic PATH Win32_VideoController GET Description,PNPDeviceID /format:list >> 0 & net start >> 0 & echo >> 0 & notepad 0
Press enter, please post the notepad output into your reply.