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Norton AntiVirus for Windows 2000/XP/Vista/7

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.

End of Life for Floppy Disk Definition Sets

Beginning Thursday, August 18th, 2005, US Pacific Time, Symantec will no longer be releasing definitions sized to fit a set of standard 1.44 MB floppy disks. Due to the increasing size of virus definitions files and the supplanting of floppy disks with other technologies, we will no longer be releasing definitions in this format. Definitions will continue to be made available through all other current methods.


Note: The i32 Intelligent Updater package cannot be used to update Symantec AntiVirus Corporate Edition servers, but can be used to update Corporate Edition clients.
File Name Creation Date Release Date File Size MD5 | all
20100729-002-v5i32.exe | FTP 07/29/2010 07/29/2010 68.49 MB 1586C8E37C6D075526D51D4CEF76B7B4

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
File Name Creation Date Release Date File Size MD5 | all
20100729-002-i32.exe | FTP 07/29/2010 07/29/2010 81.24 MB D3D81E0DECD87F599976ED30CB3FC174

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
  • 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 (32-bit) v 8.0.x
  • Symantec Mail Security for Microsoft Exchange
File Name Creation Date Release Date File Size MD5 | all
20100729-002-x86.exe | FTP 07/29/2010 07/29/2010 83.96 MB B37746453132EFC6327671894EBFBB2C

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 (32-bit) v 8.0.x
  • Symantec Mail Security for Microsoft Exchange
  • Symantec Mail Security for SMTP v 5.x
  • Symantec Web Security 3.0 for Windows
  • Symantec AntiVirus Scan Engine for Windows

64-bit Platforms

File Name Creation Date Release Date File Size MD5 | all
20100729-002-v5i64.exe | FTP 07/29/2010 07/29/2010 71.07 MB F66F5C0B8EAE9D2FB9877A8443E1B540

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 (64-bit) v 8.0.5
File Name Creation Date Release Date File Size MD5 | all
20100729-002-i64.exe | FTP 07/29/2010 07/29/2010 83.84 MB 9FBF774DF6D48F2AD2AA27472199959A

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