Question

why is antivirus useful​

Answer 1

Answer:

HERE IS YOUR ANSWER!!

Antivirus prevents the virus from being entered into computer which makes the system hang free.

HOPE IT HELPS YOU

Answer 2

Antivirus softwares are programs that help protect your computer against most viruses, worms, Trojan horses, and other unwanted invaders that can make your computer "sick." ... Antivirus software is an important tool to help prevent such attacks.