Sometimes, certain viruses can make it impossible to start the computer in a virus-free environment. In this case the computer has to be started from a virus-free rescue CD and a scan has to be carried out during startup.
You can use the Panda Antivirus Pro 2010 CD as a rescue disk or create a rescue CD from the Services menu in Panda Antivirus Pro 2010.
How to create a rescue CD
Note: It is important that the rescue disk is created on a virus-free computer. Otherwise, the rescue disk would be useless as it would not allow the computer to be started up in a virus-free environment.