Hello Nikhil,
I'm agree what you inform that Norton has triple layer protection, however this case didn't impacted on my Notebook which using 32bit Operating System, and for common users this phenomenon make them confusing, and the Download Insight however should be work as the eicar test (what ever download as txt, com or zip) for customer test for their anti virus program has installed on their computers.
Awaiting the future information and advice.
Regards,