PLZ HELP! Chrome OS compatible with Norton Security Deluxe?

THANK YOU for reading this post/thread! ;o)

So, I AM an 81 year old Guy (Senior Citizen)...essentially an Analog Guy living in the Digital Age (often times overwhelmed by IT).

Recently I had malware on my HP laptop (which has been acting strange ever since) and thus have NOT trusted my laptop to be secure. That means that I have NOT signed-in to my e-mail account or done online banking.   ;o(

I can only hold out for so long! 

So, a replacement, for my HP laptop, was necessary.

I, alas, live in a city of 25,000 people and there are only 2 places where you can buy a computer the Walmart Superstore and Staples (and yes, I know there are more options online). Staples had no sales whatsoever, hence their laptops were too expensive for me. The Walmart Superstore had an Acer Chromebook 315, 15.6" HD, Intel Celeron N4000, 4GB LPDDR4, Pure Silver, Chrome OS, CB315-3H-C19A for $179.90 (ergo the price was right!).

When I asked the Walmart associates in the electronics department detailed questions regarding the Acer Chromebook 315...the answer was "We don't know!" ("Really?")

Online for sale price $149.00, hence I bought the Acer online and it was shipped to me. 

So, that having been said, is Chrome OS compatible with Norton Security Deluxe? MBAM?

What should I know about Chrome OS?

I AM an Old Guy luddite who is overwhelmed by IT issues these days, hence I would TRULY appreciate input on the Acer Chromebook and Chrome OS.

I THANK YOU in advance for ALL of your help and advice Good People! :o)