To avoid getting viruses.
Antivirus software will notice about the virus,malware,spyware etc
Yes, it does.
Yes.
Cell phones don't get viruses and don't need antivirus software.
anti virus
Simply download the installer for the antivirus, then run it. With some antivirus software you don't even need to install it!
This means your anti virus software is not working properly . You need to reinstall your antivirus software or install a new one.
Mirror is nothing utility in antivirus software
Through Antivirus software we can protect PC from harmful viruses and trozans .it can save our window from spamming bugs and spyware
Application software
"antivirus" is protective software designed to defend your computer against malicious software.
You need antivirus to protect your computer from being destroyed by malicious software. Some great free programs that do what their ment to do are AVG and AVAST. Try them. Thanks a lot really good answer :) Anti virus software stops hackers software damaging or destroying your computer.