It's possible. I'm using NAV 2001 and checkbox is under auto-protect options.

>I looked for the smart scan under "File System Realtime Protection"
>and could not find it anywhere. Not even in the help.
>Could this be a feature of a different version?
>
>
>>Make sure that "Enable SmartScan technology" in auto-protect options is unchecked.
>>
>>>
>>>No soft firewall. It's all hardware. Stopping NAV made the problem go away though. I'm just not sure whay it started happening when I never had the problem before.