Hi,
Just a Few Points to Remind You.....
SAV 10 Corporate Edition could be divided into :
1) Symantec Antivirus
2) Symantec System Center
3) Liveupdate 3.0 to 3.2
Symantec Endpoint Protection 11.x could be divided into:
1) Symantec Endpoint Protection
2) Symantec Endpoint Protection Manager
3) Liveupdate 3.3
The Best KB followed for Migration from 10.x to 11.x is given below:
How To Migrate From Symantec Antivirus System Center Console To Symantec Endpoint Protection Manager
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/eda2ac3faa9a31b0882574f90001484e?OpenDocument
The Best Procedure we as Tech Support Follow on most of the network is as follows:
1) Uninstall Symantec System Center from Add/ Remove Programs
2) Install Symantec Endpoint Protection Manager
'Installing and configuring Symantec Endpoint Protection 11 for the first time'
http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007082915561148?Open&src=w
3) Create Groups in Symantec Endpoint Protection Manager
4) Create Packages
Creating custom Client Installation packages in the Symantec Endpoint Protection Manager Console
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/c741ec26fa674b1e8825738a0076abf3?OpenDocument
How to create a Symantec Endpoint Protection install package that will install to a different drive
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/d1e02487e4d75e8b8825739200581baa?OpenDocument
5) Deploy the Clients with Migration and Deployment wizard or by "Find Unmanaged Computers"
How to Deploy Symantec Endpoint Protection to your client computers using the Migration and Deployment Wizard.
http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007111409432848
Deploying client software with Find Unmanaged Computers
http://support.veritas.com/docs/330717