The previous Symantec Endpoint Protection (SEP) client version registry value in HKLM\System\currentcontrolset\services\smcinst
is not being deleted by the auto-upgrade process.
The HKLM\System\currentcontrolset\services\smcinst
registry entry is not getting deleted during auto-upgrade process.
This issue is fixed in SEP14 (v.14.0.2349.0100)