Norton AntiVirus Virus Definition

As new threats emerge, Symantec immediately builds new protection updates and makes them available for download on a subscription basis. If your subscription has expired, click here. The Norton AntiVirus engine is common to the Norton AntiVirus, Norton Internet Security, and Norton 360 products. You can update these products using definitions shown below as supporting Norton AntiVirus. Supports the following versions of Symantec antivirus software: - Norton AntiVirus 2011 for Windows XP/Vista/7- Norton Internet Security 2011 for Windows XP/Vista/7- Norton Antivirus 2010 for Windows XP/Vista/7- Norton Internet Security 2010 for Windows XP/Vista/7- Norton AntiVirus 2009 for Windows XP Home/XP Pro/Vista- Norton Internet Security 2009 for Windows XP Home/XP Pro/Vista- Norton AntiVirus 2008 for Windows XP Home/XP Pro/Vista- Norton Internet Security 2008 for Windows XP Home/XP Pro/Vista- Norton 360 version 5.0 for Windows XP/Vista/7- Norton 360 version 4.0 for Windows XP/Vista/7- Norton 360 version 3.0 for Windows XP/Vista- Norton 360 version 2.0 for Windows XP/Vista- Symantec Endpoint Protection 11.0- Symantec Endpoint Protection Small Business Edition 12.0.