Avast, Avira, AVG or Sophos?

Bhavya shah

Dear all,
I use a Windows 8.1 machine, and usually evade all dodgy websites,
particularly ones involving social engineering. Thus, I am in need of
a simple, powerful and accessible anti-virus tool to compliment the
built-in Windows Defender (which I deem insufficient).
To thoroughly limit the scope of this question, because I am aware
that accessible anti-virus pertaining discussions have taken place
endlessly in the past, which of the following four would a general
consensus in the NVDA community recommend - Avast, Avira, AVG or
Sophos? Please note that my personal focus would lie only with the
free versions of the aforesaid programs.
I would truly appreciate any assistance.

Best Regards
Bhavya Shah

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