Reset LiveUpdate pointer to Symantec on a Win8 64 / SEP 12.1.x Machine

I know it may be a bit eary in the game, but I need a method to redirect a a SEP 12.1.2 client back to Symantec for LiveUpdate definitions (currently pointing internally)

Assuming that Tamper Protect is 'temporarily' disabled, with Win7 I have been using this document as a reference: http://www.symantec.com/docs/TECH166129 and placing the Settings.Hosts.LiveUpdate file in this location: "C:\ProgramData\Symantec\Symantec Endpoint Protection\CurrentVersion\Data\Config\" before calling SEPLiveUpdate.

With Windows 8, this method does not appear to work any longer.

Thanks for any suggestions,

-Mike