You can resolve this issue by doing the following:
Stop the Symantec Endpoint Protection, Symantec Event Manager and Symantec Management Client Services
Delete the Settings.bat and Settings.dat files
Perform a repair of the installation. This can be done in Control Panel under Add/Remove Programs and selecting the Symantec Endpoint Protection entry. Clicking on Change will pull up the Program Maintenence Wizard. Click the Next button and select Repair.
Once the repair is complete, restart the computer and verify the error is no longer encountered.
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