Symantec Endpoint Protection Installations on Windows x64 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-039-SEF_IU_SEP_14.3_RU9_x64.jdb	05/19/2026	5/19/2026	13.29 MB			B9DA1FC04DDB00687C68568728296AE9
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.4 x64
Symantec Endpoint Protection Manager 14.3 RU10 x64
Symantec Endpoint Protection Manager 14.3 RU9 x64
====================================================

Symantec Endpoint Protection Client Installations on Windows x64 Platforms
Use the executable file for client installations only if you are using one of the supported products that are listed below.
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-039-SEF_IU_SEP_14.3_RU9_x64.exe	05/19/2026	5/19/2026	11.48 MB			DF0AF0A16E16F56374983B5A4EF15128
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.4 x64 (Client only)
Symantec Endpoint Protection 14.3 RU10 x64 (Client only)
Symantec Endpoint Protection 14.3 RU9 x64 (Client only)
====================================================

Symantec Endpoint Protection Installations on Windows x64 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-038-SEF_IU_SEP_14.3_RU8_x64.jdb	05/19/2026	5/19/2026	13.1 MB			DEB94491F617B60E21BD462C13A0F818
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU8 x64
====================================================

Symantec Endpoint Protection Client Installations on Windows x64 Platforms
Use the executable file for client installations only if you are using one of the supported products that are listed below.
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-038-SEF_IU_SEP_14.3_RU8_x64.exe	05/19/2026	5/19/2026	11.36 MB			EFF146D4992F186D4E732755AE965278
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU8 x64 (Client only)
====================================================

Symantec Endpoint Protection Installations on Windows x64 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-037-SEF_IU_SEP_14.3_RU7_x64.jdb	05/19/2026	5/19/2026	13.07 MB			AEBA6BF94BFCCAE6CB358A778636964C
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU7 x64
====================================================

Symantec Endpoint Protection Client Installations on Windows x64 Platforms
Use the executable file for client installations only if you are using one of the supported products that are listed below.
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-037-SEF_IU_SEP_14.3_RU7_x64.exe	05/19/2026	5/19/2026	11.31 MB			DAFD9F83CC33A5B35BDD0E5E9C04D2DF
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to RU7 x64 (Client only)
====================================================

Symantec Endpoint Protection Installations on Windows x64 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-037-SEF_IU_SEP_14.3_RU6_x64.jdb	05/19/2026	5/19/2026	13.07 MB			EECD381F528258AB0786B74F093BD40D
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU6 x64
====================================================

Symantec Endpoint Protection Installations on Windows x64 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-037-SEF_IU_SEP_14.3_RU5_x64.jdb	05/19/2026	5/19/2026	13.07 MB			FE48FE0DA38ABBF9C5146CB1438764B4
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU5 x64
====================================================

Symantec Endpoint Protection Installations on Windows x86 Platforms
How to update definitions for Symantec Endpoint Protection Manager using the .jdb file
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-036-SEF_IU_SEP_14.3_RU5_x86.jdb	05/19/2026	5/19/2026	10.0 MB			3F135247428E8D238E122736721A78DF
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection Manager 14.3 RU5 x86
====================================================

Symantec Endpoint Protection Client Installations on Windows x86 Platforms
Use the executable file for client installations only if you are using one of the supported products that are listed below.
File Name	Creation Date	Release Date	File Size	Defs Version	Sequence Number	MD5 | all
sef/20260519-036-SEF_IU_SEP_14.3_RU5_x86.exe	05/19/2026	5/19/2026	8.62 MB			46F15DA5D86B3489D6A5476C18CB7317
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to 14.3 RU5 x86 (Client only)