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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
20181015-005-core3sdsv5i32.exe | FTP 10/15/2018 10/15/2018 67.08 MB 6D0C87F464E59D32FBB3AA46523F8279

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
20181010-002-core31sdsv5i32.exe | FTP 10/10/2018 10/10/2018 72.68 MB 4911A3520E721619D90FF593B50BED8E

Supports the following versions of Symantec antivirus software:

  • Symantec Endpoint Protection Cloud (version 22.10)
  • Symantec Endpoint Protection 14.0 RU1 (Low-Bandwidth clients only)
File Name Creation Date Release Date File Size MD5 | all
20181015-005-core3sdsg2v5i32.exe | FTP 10/15/2018 10/15/2018 67.08 MB 4BAF48ABD1375927529960F7D9C5F6E0

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.9, 22.10 and later)
  • Norton Security with Backup (version 22.9, 22.10 and later)
  • Norton AntiVirus / Norton Internet Security (version 22.9, 22.10 and later)
  • Norton 360 (version 22.9, 22.10 and later)
File Name Creation Date Release Date File Size MD5 | all
20181015-005-v5i32.exe | FTP 10/15/2018 10/15/2018 182.61 MB 06B8DD16D26EE80085997BC68D4EF4D1

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
20181015-005-core3sdsv5i64.exe | FTP 10/15/2018 10/15/2018 67.11 MB 803CA64A3FDA0ED456DDEE870B420366

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
20181010-002-core31sdsv5n64.exe | FTP 10/10/2018 10/10/2018 73.85 MB 0C827961B3275C2010CD24091F06CCD3

Supports the following versions of Symantec antivirus software:

  • Symantec Endpoint Protection Cloud (version 22.10)
  • Symantec Endpoint Protection 14.0 RU1 (Low-Bandwidth clients only)
File Name Creation Date Release Date File Size MD5 | all
20181015-005-core3sdsg2v5i64.exe | FTP 10/15/2018 10/15/2018 68.25 MB B07787B18B29FA169B60A6EDDBA66296

Supports the following versions of Symantec antivirus software:

  • Norton Security (version 22.9, 22.10 and later)
  • Norton Security with Backup (version 22.9, 22.10 and later)
  • Norton AntiVirus / Norton Internet Security (version 22.9, 22.10 and later)
  • Norton 360 (version 22.9, 22.10 and later)
File Name Creation Date Release Date File Size MD5 | all
20181015-005-v5i64.exe | FTP 10/15/2018 10/15/2018 184.1 MB F6CEF5C9E203BB178956ED17002EAB4B

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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