SNL, Auto-Protect, and Symantec AntiVirus Error

Good afternoon,

 

  I'm getting this error whenever I try to update:

 

  "Symantec AntiVirus Auto-Protect could not continue. Please run LiveUpdate or reinstall Symantec AntiVirus and restart. (Code: 10)"

 

I've run LiveUpdate and reinstalled but continue to get this error.

 

I'm running version 1.5.1(1).

 

What's the fix?

 

Thanks, Vince.