Virus Conficker, Downadup, or Kido has been detected.
This virus affect any Microsoft Windows machine and due this, browser stop the access to windows update and any Antivirus link/Database to get it updated.

Symptoms Of the Virus are

1] When you run netstat -an command you will find lot of connection on port 455 which is important and usually used my Windows SMB protocol
2] Windows update site will not work
3] None of Antivirus URL or links will work
To remove this Virus, you need to download Malicious Removal Tool Provided By
You can also check http://news.bbc.co.uk/2/hi/technology/7832652.stm for More information about this virus.