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/20261022-084-SEF_IU_SEP_14.3_RU9_x64.jdb	10/22/2026	10/22/2026	13.29 MB			3A0F7CA69ABA32EB4CA8C0DF578B3918
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/20261022-083-SEF_IU_SEP_14.3_RU8_x64.jdb	10/22/2026	10/22/2026	13.1 MB			A5FA4046EF720A977682A80DC90EFCCA
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/20261022-063-SEF_IU_SEP_14.3_RU8_x64.exe	10/22/2026	10/22/2026	11.36 MB			079D75A1B0554A7D3445A98CC2CDE88B
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/20261022-082-SEF_IU_SEP_14.3_RU7_x64.jdb	10/22/2026	10/22/2026	13.07 MB			D6C2508D1E18BCB8CB5A1DC9E5B72C2B
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/20261022-082-SEF_IU_SEP_14.3_RU7_x64.exe	10/22/2026	10/22/2026	11.31 MB			A9B7E3CB5CDA6D5127C2D47A3A95B696
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/20261022-082-SEF_IU_SEP_14.3_RU5_x64.jdb	10/22/2026	10/22/2026	13.07 MB			5A8556F5C45B35519B648F0B249650E9
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/20261022-081-SEF_IU_SEP_14.3_RU5_x86.jdb	10/22/2026	10/22/2026	10.0 MB			F481DF1E56E1FBC41F2E2B95B80CDE9A
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/20261022-081-SEF_IU_SEP_14.3_RU5_x86.exe	10/22/2026	10/22/2026	8.62 MB			028D9C6F7BFA70A543437B282D94521A
This updater is suitable for the following versions of Symantec products:
Symantec Endpoint Protection 14.3 RU1 to 14.3 RU5 x86 (Client only)