Download Process Explorer and try to find out what is going on:
- http://www.microsoft.com/technet/sysinternals/Utilities/ProcessExplorer.mspx
Then go to install a firewall, for our purpose you can use Zonalarm or whatever you prefer. You need a firewall to block and find out which processes are trying to connect to Internet. You can also use TCP View to monitor TCP traffic:
- http://www.microsoft.com/technet/sysinternals/Utilities/TcpView.mspx
Bye.