Hi Praveen , These were the options which I had
[Settings]
ShowGUI=N
ShowMessageBox=N
MessageBoxText=Prepairing your system for Symantec Endpoint Protection 11.0. During this process other antivirus products will be removed.\n\nIf you are prompted please fully remove these products.
AutoRunAfterUILoads=N
AskBeforeRemoval=N
SilentMSIInstaller=Y
RemoveSymantec=Y
CheckDiskSpace=Y
ResumeAfterReboot=Y
EnableLogging=Y
LogPath=C:\abc
RunBeforeRemoval=
RunAfterRemoval=C:\abc\setup.exe
I wanted to do this via SepPrep . Actually what happens is when existing version is removed and it tries to execute RunAfterRemoval arguent it couldn't install SEP becuase prior to install the agent it need to reboot machine once , so this is where it is not happening and automatically starting machine after the reboot doesnt trigger the installation of SEP.
Is there anything I am missing here. Regards