For Manual Update Norton AntiVirus for Windows 2000/XP/Vista/7

Norton Antivirus from Symantec Corporation produces top antivirus like Norton 360 version 4.0, Norton Internet Security 2010, Norton Antivirus 2010, Symantec Endpoint Protection 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Norton SystemWorks, Symantec AntiVirus, Symantec Mail Security, Symantec Web Security, etc.

LiveUpdate

LiveUpdate obtains program and protection updates for your computer by using your Internet connection.
Program updates are minor improvements to your installed product. These differ from product upgrades, which are newer versions of entire products. Program updates are usually created to extend the operating system or hardware compatibility, adjust a performance issue, or fix program errors. Program updates are released on an as-needed basis.
LiveUpdate automates program update retrieval and installation. It locates and obtains files from an Internet site, installs them, and then deletes the leftover files from your computer.
Protection updates are the files that keep your Symantec products up-to-date with the latest threat protection technology. The protection updates you receive depend on which products are installed on your computer.

Manual Update Norton AntiVirus

Go to Norton Antivirus Definition Download

You can update these products using definitions shown below as supporting Norton AntiVirus.

Definition v5i32

Supports the following versions of Symantec antivirus software:

• 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 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

Definition i32

Supports the following versions of Symantec antivirus software:
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• Norton AntiVirus 2005 for Windows 2000/XP Home/XP Pro
• Norton AntiVirus 2006 for Windows 2000/XP Home/XP Pro
• Norton AntiVirus 2007 for Windows XP Home/XP Pro/Vista
• Norton 360 version 1.0 for Windows XP/Vista
• Norton SystemWorks (all versions)
• Symantec AntiVirus 3.0 for CacheFlow Security Gateway
• Symantec AntiVirus 3.0 for Inktomi Traffic Edge
• Symantec AntiVirus 3.0 for NetApp Filer/NetCache
• Symantec AntiVirus 10.0 Corporate Edition Client
• Symantec AntiVirus 10.1 Corporate Edition Client
• Symantec AntiVirus 10.2 Corporate Edition Client
• Symantec Mail Security for Domino v 5.x
• Symantec Mail Security for Domino v 7.x
• Symantec Mail Security for Domino v 8.0.x (32-bit)
• Symantec Mail Security for Microsoft Exchange v 5.x

Definition x86

Supports the following versions of Symantec antivirus software:

• Norton AntiVirus 2005 for Windows 2000/XP Home/XP Pro
• Norton AntiVirus 2006 for Windows 2000/XP Home/XP Pro
• Norton AntiVirus 2007 for Windows XP Home/XP Pro/Vista
• Norton 360 version 1.0 for Windows XP/Vista
• Symantec AntiVirus 3.0 CacheFlow Security Gateway
• Symantec AntiVirus 3.0 for Inktomi Traffic Edge
• Symantec AntiVirus 3.0 for NetApp Filer/NetCache
• Symantec AntiVirus 10.0 Corporate Edition Client
• Symantec AntiVirus 10.1 Corporate Edition Client
• Symantec AntiVirus 10.2 Corporate Edition Client
• Symantec AntiVirus for Bluecoat Security Gateway for Windows 2000 Server/2003 Server
• Symantec AntiVirus for Clearswift MIMESweeper for Windows 2000 Server/2003 Server
• Symantec AntiVirus for Microsoft ISA Server for Windows 2000 Server/2003 Server
• Symantec Mail Security for Domino v 5.x
• Symantec Mail Security for Domino v 7.x
• Symantec Mail Security for Domino v 8.0.x (32-bit)
• Symantec Mail Security for Microsoft Exchange v 5.x
• Symantec Mail Security for SMTP v 5.x
• Symantec Web Security 3.0 for Windows
• Symantec AntiVirus Scan Engine for Windows

64-bit Platforms

Definition v5i64

Supports the following versions of Symantec antivirus software:

• Norton AntiVirus 2010 for Windows XP/Vista/7 for 64-bit OS only
• Norton Internet Security 2010 for Windows XP/Vista/7 for 64-bit OS only
• Norton AntiVirus 2009 for Windows XP/Vista for 64-bit OS only
• Norton Internet Security 2009 for Windows XP/Vista for 64-bit OS only
• Norton AntiVirus 2008 for Windows XP/Vista for 64-bit OS only
• Norton Internet Security 2008 for Windows XP/Vista for 64-bit OS only
• Norton 360 version 4.0 for Windows XP/Vista/7 for 64-bit OS only
• Norton 360 version 3.0 for Windows XP/Vista for 64-bit OS only
• Norton 360 version 2.0 for Windows XP/Vista for 64-bit OS only
• Symantec Endpoint Protection 11.0 for 64-bit OS only
• Symantec Endpoint Protection Small Business Edition 12.0 for 64-bit OS only
• Symantec Mail Security for Domino v 8.0.5 for 64-bit OS only

Definition i64

Supports the following versions of Symantec antivirus software:

• Symantec AntiVirus 10.0 Corporate Edition Client for 64-bit OS only
• Symantec AntiVirus 10.1 Corporate Edition Client for 64-bit OS only
• Symantec AntiVirus 10.2 Corporate Edition Client for 64-bit OS only
• Norton AntiVirus 2007 for Windows Vista 64-bit OS only
• Norton Internet Security 2007 for Windows Vista 64-bit OS only
• Norton 360 version 1.0 for Windows XP/Vista 64-bit OS only

Source: Ariefew