This is a problem due to curropt Definitions.
Perform the following:
When trying to access C:\Documents and Settings\All Users\Application Data\Symantec\SRTSP\Quarantine. you will probably get an access denied.
Right click on the folder, go to properties then security
Add the users who is currently logged on with full control
Open command prompt
Navigate to C:\Documents and Settings\All Users\Application Data\Symantec\SRTSP\Quarantine
Delete all files by typing the command "Del *.*" and hit enter
Restore the default priviliages by removing the user added with full control.
Next, stop the SMC, and SEP service.
Next perform the steps in
http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007123111551948
Repair SEP from add/remove prgram.
All should be fine.