ClearChoice IT Services Knowledge Base

For the sake of those you may have this problem in the future, here are the steps that corrected my issue:

• Go to a command prompt and run wbemtest
• Click the Connect button
• Replace root\default with root\securitycenter and click Connect
• You will be returned to the original screen, now click the Enum Classes button, leave the Superclass info box that appears as is (empty) and click OK
• On the Query Results screen, highlight AntivirusProduct and choose the Delete button.
• Close the Query windows and exit wbemtest
• Now either reinstall or repair Symantec Antivirus Corporate Edition

Source:  http://www.symantec.com/connect/forums/microsoft-visual-c-runtime-error-sav-client-fails-start