how Defintion will curruprt and how to fix on SEP 12./SEP11
Check article for 11.x
How to clear out corrupted definitions for a Symantec Endpoint Protection client manually
article for 12.x
How to clear out definitions for a Symantec Endpoint Protection 12.1 client manually
You need to remove manually
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How it will currupt do you have anyarticle
Could be a few reasons but main one seems to be if client gets powered down when pulling down content or processing it.
Run the symhelp tool, it can detect corrupt content.
Common reason is
system is shutdown in uploading time
any other application is in process.
You can run the symhelp utility to find the corruption as the mention in their comment
This article will assist to determin if defintion is corrupt
How to determine if virus definitions of Symantec Endpoint Protection client (SEP) 11 or 12 Small Business Edition, are corrupted
Potential Symantec Endpoint Protection content definition corruption
Clients is online, in that case, what could be reason to currupt the defintion and updating
is that only disk space, aprt from not online, since all systems will be online but still we have more curpted defintion systems, since all are servers.
is there any other way to fix instead of deleting defntion, since if we delete defintion, it will again take full defontion from AV server
Needs to be manually removed. It's the only way. Yes would take full def from SEPM after being removed.
There is a utility which you can run with psexec tool to remove the corrupted defintion for 11.x client.
Using the "Rx4DefsSEP" utility
It not be operation in 12.x sep, you can do it manually there.
Yes it can take the full defintion again.
You can check for corrupt definitions using SymHelp:
How to use Self-Help reporting
The report which checks for corrupt definitions links to this article...
...which is meant to be a hub for more information, but has not succeeded as of yet.
I found this forum post that is more promising...
Troubleshooting Articles for Repairing the Corrupted Definition