Norton for Mac

[SteveRaf]

I'm running OS 10.7.4 (MacBook Air mid 2011) and NAV 12.3.  My Automatic Virus Protection is disabled. And "AntiVirus Auto-Protect could not load the scan engine. Please run LiveUpdate to get the latest version." is what appears. LiveUpdate says my software is up to date.

I looked at an earlier recent thread on scan engine trouble - was no help. If I don't respond tonight it's 'cause I'm going to sleep. Back tomorrow. Thanks for helping.

[Lee_G]

Were these the steps you attempted?

You'll need your activation key after doing this (available from Norton Account).

 

In Terminal (/Applications/Utilities), enter the following command:

 

       sudo rm -f /private/var/db/com.symantec/Symantec.keychain

 

(you'll be asked to enter your admin password).

After doing that, restart, then reactivate the product.

[SteveRaf]

Thanks for getting back to me, Lee.  That is what I'd tried. After I enter the command in Terminal, press Return, when I try to enter in my password, it won't type in.

[Lee_G · Accepted solution]

The password won't echo on the screen (by design), but when you type the password and hit return, it should execute the command.  To see if the rm command worked, you can use this command:

sudo ls /private/var/db/com.symantec/Symantec.keychain

If the keychain was deleted (rm deletes the file), you should get a "No such file or directory" message when you do the above.

[SteveRaf]

Thanks a lot, Lee.  I'm back in business!  I should learn more about using Terminal.

[Lee_G]

Using Terminal can be powerful, but also potentially dangerous, especially when using sudo which escalates your user privileges (the "su" stands for "super user").   So use with caution, especially if you're not sure about the effects (deleting certain system files can make your machine unbootable, for example).

[Matabear]

I'm just new to this and not sure where to enter the command in Terminal - do I do this where the cursor thingy is?  i.e. just type in and hit enter??  And when I do this it won't stuff up my computer will it??

[Lee_G]

Yes, just type at the cursor and hit return (enter).  It will prompt for a password, which isn't echoed, hit return again after you type it.

If you copy and paste the command as written, it will only remove a file that is used by NAV, and not cause other affects (except that you'll need to re-enter your NAV activation code).  My general caution about using Terminal was in response to SteveRaf's comment about using it more.  As I said, it's certainly sometimes useful, but potentially dangerous if you experiment without understanding what the commands are doing.

[Paul1970]

Same problem here with NAV 12.3 (71) on MacOS X 10.8.1

Remove symantec keychain with terminal doesn't help. :-(

[macbaldy]

I'm getting the same "Auto-Protect could not load scan engine" error message--on a *2012* MacBook Air running 10.7.4--after an apparently successful activation.

I've used your terminal commands--and restarts and re-activations--without change.  

However, as an additional symptom, I also not that the "About Norton AntiVirus" popup window shows:

     Activation code: Not Activated

     Serial number: Not Activated

     Current SKU: Could not load licensing data

     Media SKU: Could not load licensing data

     Family SKU: Could not load licensing data

     Endpoint SKU: Could not load licensing data

I don't find how I can improve on the activation opportunity so that this information could be provided.

Shouldn't the scan engine error be independent of activation?  Still, how can my paid version be properly activated?