Upgrading Symantec Protection Engine on Windows

You can upgrade Symantec Protection Engine from the existing version on your computer to a newer version. You can either preserve existing settings or perform a clean upgrade. If you cancel the installation process during an upgrade, you might need to restart the service as the service stops when the installer detects an upgrade.
Configuring the clean upgrade installation option on Windows to upgrade Symantec Protection Engine using the clean upgrade installation option.
Configuring the preserve settings upgrade installation option on Windows to upgrade Symantec Protection Engine using the preserve settings upgrade installation option.