A virus is a program that can copy itself and infect a computer without permission or knowledge of the user. A virus can only spread from one computer to another when it's host is taken to an uninfected computer, for instance by sending it over a network or the Internet, or by carrying it on removable media such as a floppy disk, optical disc (CD,DVD, Blu-Ray), or USB drive. The term virus is commonly used to refer to malware, adware, Trojan horses or worms, although these are all technically different.
IMPORTANT: The removal of any viruses or malware infection is not covered under Sony’s limited warranty. Sony® is not liable for the loss or corruption of your confidential, personal, or proprietary information or other data located on your VAIO® PC (on your hard disk drive, removable media, or otherwise).