|In the case of a your PC being infected with a virus you should always use an antivirus program to remove the infection before doing anything else.|
If you do a restore on an infected computer, this won't kill the infection.
We'll need some info to help you. Open a command prompt window (go to Start >> Run and type cmd and then hit enter) and type the following command;
Post the output of this in a reply here so we can see your PC's TCP/IP settings.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.