[OK now, worried about ransomware]

Do I need protection against vulnerabilities in network protocols if I only have a stand-alone computer (of course connected to the internet)?

[OK now, worried about ransomware]

I'm not clear about what you just said. Does ESET NO32 Antivirus provide the best ransomware protection for a stand-alone computer? If not, what does?

[OK now, worried about ransomware]

I use a stand-alone computer (Wjndows 10) and ESET NOD32 AntiVirus. Do I have full protection against ransomware?