Hi Friends,

In this blog i have added some Troubleshooting Articles which can help to Repairing the Corrupted Definition

How to clear corrupt Virus Definitions from SEPM
https://www-secure.symantec.com/connect/articles/how-clear-corrupt-virus-definitions-sepm

Using the "Rx4DefsSEP" utility
http://www.symantec.com/docs/TECH93036

Using the "Rx4Defs64" utility
http://www.symantec.com/docs/TECH105038

Drive Space used by Virus Definitions Updates
http://www.symantec.com/docs/TECH141811

Disk Space Management procedures for the Symantec Endpoint Protection Manager
http://www.symantec.com/docs/TECH96214

How to Backdate Virus Definitions in Symantec Endpoint Protection Manager
http://www.symantec.com/docs/TECH102935

Symantec Endpoint Protection Manager (SEPM) 12.1 is not updating 32 or 64 bit virus definitions.
http://www.symantec.com/docs/TECH166923

How to update definitions for Symantec Endpoint Protection Manager (SEPM) using a .jdb file
http://www.symantec.com/docs/TECH102607

Script to download Definitions from SEPM
https://www-secure.symantec.com/connect/downloads/script-download-definitions-sepm

How to create a client installation settings to delete previous logs, policies and reset the client-server communication settings?
http://www.symantec.com/docs/TECH93617

Symantec Endpoint Protection: LiveUpdate Troubleshooting Flowchart
http://www.symantec.com/docs/TECH95790

Only 32 Bit Antivirus / Antispyware Definitions are not updating on the 32 Bit / 64 Bit Operating System.
http://www.symantec.com/docs/TECH122857

How to determine if virus definitions of Symantec Endpoint Protection client (SEP) 11 or 12 Small Business Edition, are corrupted
http://www.symantec.com/docs/TECH97677

Potential Symantec Endpoint Protection content definition corruption
http://www.symantec.com/docs/TECH92043

Remove Virus Definitions
https://www-secure.symantec.com/connect/downloads/remove-virus-definitions

Symantec Endpoint Protection 12.1: How to roll back the BASH definitions to a known good version
http://www.symantec.com/docs/HOWTO53366

How to update definitions for Symantec Endpoint Protection using the Intelligent Updater
http://www.symantec.com/docs/TECH102606

How to clear out definitions for a Symantec Endpoint Protection 12.1 client manually
http://www.symantec.com/docs/HOWTO59193

Symantec Endpoint Protection (SEP) 12.1 client is maintaining multiple virus definitions versions on servers.
http://www.symantec.com/docs/TECH180056

Hope these are helpful.

Thanks

Sumit G.