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Norton Definitions for Windows XP/Vista/7/8/8.1/10

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.

Choosing the right definition set
To choose the correct definition set, you need to know the product name and version, and whether the operating system is a 32-bit or 64-bit version.
How to find out if you are running a 32-bit or 64-bit version of Windows
How to find the name and version of your Norton product

32-bit Platforms

The following definition sets are suitable for 32-bit operating systems only.
File Name Creation Date Release Date File Size MD5 | all
20170224-009-core3sdsv5i32.exe | FTP 02/24/2017 02/24/2017 73.39 MB 40B05C4850431CA6B0AD6309A33BC5DC

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.7 to 22.8)
  • Norton Security with Backup (version 22.7 to 22.8)
  • Norton AntiVirus / Norton Internet Security (version 22.7 to 22.8)
  • Norton 360 (version 22.7 to 22.8)
File Name Creation Date Release Date File Size MD5 | all
20170224-009-core3sdsg2v5i32.exe | FTP 02/24/2017 02/24/2017 73.39 MB 1361CE6E841596E852C7702C19323295

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.9)
  • Norton Security with Backup (version 22.9)
  • Norton AntiVirus / Norton Internet Security (version 22.9)
  • Norton 360 (version 22.9)
File Name Creation Date Release Date File Size MD5 | all
20170224-009-v5i32.exe | FTP 02/24/2017 02/24/2017 176.09 MB 5748CA8568B1BC6E4A07D2DDE8F4A908

Supports the following versions of Symantec antivirus software:

  • Norton AntiVirus / Norton Internet Security (later than 2012, up to version 22.6.x.x)
  • Norton AntiVirus / Norton Internet Security 2008/2009/2010/2011/2012
  • Norton 360 (later than 6.0, up to version 22.6.x.x)
  • Norton 360 version 2.0/3.0/4.0/5.0/6.0
  • Norton Security (up to version 22.6.x.x)
  • Norton Security with Backup (up to version 22.6.x.x)
  • Symantec Endpoint Protection 12.1
  • Symantec Endpoint Protection 12.1.2 and later
  • Symantec Protection Engine 7.x for Windows
  • Symantec Mail Security for Domino v 7.x
  • Symantec Mail Security for Microsoft Exchange (32-bit)
  • Symantec Scan Engine 5.x for Windows
  • Symantec AntiVirus for Caching/Messaging/NAS for Windows

64-bit Platforms

The following definition sets are suitable for 64-bit operating systems only.
File Name Creation Date Release Date File Size MD5 | all
20170224-009-core3sdsv5i64.exe | FTP 02/24/2017 02/24/2017 73.42 MB 96943CD928392D100ADB9DB70E1080EB

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.7 to 22.8)
  • Norton Security with Backup (version 22.7 to 22.8)
  • Norton AntiVirus / Norton Internet Security (version 22.7 to 22.8)
  • Norton 360 (version 22.7 to 22.8)
File Name Creation Date Release Date File Size MD5 | all
20170224-009-core3sdsg2v5i64.exe | FTP 02/24/2017 02/24/2017 74.55 MB E883E212C83F7FA0E9CE5C8185E734AC

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.9)
  • Norton Security with Backup (version 22.9)
  • Norton AntiVirus / Norton Internet Security (version 22.9)
  • Norton 360 (version 22.9)
File Name Creation Date Release Date File Size MD5 | all
20170224-009-v5i64.exe | FTP 02/24/2017 02/24/2017 177.55 MB F26FB65A9A2CDD237BBE6936C8151354

Supports the following versions of Symantec antivirus software:

  • Norton AntiVirus / Norton Internet Security (later than 2012, up to version 22.6.x.x) for 64-bit OS only
  • Norton AntiVirus / Norton Internet Security 2008/2009/2010/2011/2012 for 64-bit OS only
  • Norton 360 (later than 6.0, up to version 22.6.x.x) for 64-bit OS only
  • Norton 360 version 2.0/3.0/4.0/5.0/6.0 for 64-bit OS only
  • Norton Security (up to version 22.6.x.x)
  • Norton Security with Backup (up to version 22.6.x.x)
  • Symantec Endpoint Protection 12.1 for 64-bit OS only
  • Symantec Endpoint Protection 12.1.2 and later for 64-bit OS only
  • Symantec Protection Engine 7.x for Windows (64-bit)
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