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/20261028-009-SEF_IU_SEP_14.3_RU9_x64.jdb	10/28/2026	10/28/2026	13.29 MB			25E45F57F38FC11ECF0C4544C8FB1974
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/20261022-084-SEF_IU_SEP_14.3_RU9_x64.exe	10/22/2026	10/22/2026	11.48 MB			66717094615EFCC140D32C15051FC342
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/20261028-008-SEF_IU_SEP_14.3_RU8_x64.jdb	10/28/2026	10/28/2026	13.1 MB			FD82B49884C9D9C3C8271A6D4C388820
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/20261028-008-SEF_IU_SEP_14.3_RU8_x64.exe	10/28/2026	10/28/2026	11.36 MB			8806207AF87AB469B4F1087E42D7D1F9
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/20261028-007-SEF_IU_SEP_14.3_RU7_x64.jdb	10/28/2026	10/28/2026	13.07 MB			667063407734C53385D348B82FE025E1
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/20261028-007-SEF_IU_SEP_14.3_RU7_x64.exe	10/28/2026	10/28/2026	11.31 MB			E7ECEFACBCEADE2DC33AD336E614EC4D
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/20261022-082-SEF_IU_SEP_14.3_RU6_x64.jdb	10/22/2026	10/22/2026	13.07 MB			4BFD534CD625B2D24640E223DBF45705
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/20261028-007-SEF_IU_SEP_14.3_RU5_x64.jdb	10/28/2026	10/28/2026	13.07 MB			F2CF4E609BB81E85494CBD3B9374DD26
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/20261028-006-SEF_IU_SEP_14.3_RU5_x86.jdb	10/28/2026	10/28/2026	10.0 MB			5FDE096BA323D6EAEABB59CE298DB45A
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/20261028-006-SEF_IU_SEP_14.3_RU5_x86.exe	10/28/2026	10/28/2026	8.62 MB			8B7038232315560CC0F74DF34DED94FC
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to 14.3 RU5 x86 (Client only)