Antivirus is the common factor which is compulsory for your computer or your laptop.
if you don’t have any antivirus then your PC is not behaving good or the processing of your PC must be get very slow.
it protect you from Internet virus and other virus like Malware.
Antivirus is a software that remove virus permanently from your computer if sometime compulsory it delete the file also which have more virus.
It protect you from hacking. if you have antivirus then no one can hack your computer or laptop easily.
there are many antivirus in market but AVG is the best antivirus for your PC or laptop.
It has production like
software protection
web protection
Email protection
Fireworks action.
this antivirus is very useful and it remove virus and it remove virus if you install software from Internet and that software is harmful for you then it notify you and you can do whatever you want to do with that software it notify you if you click ok then remove the software on a computer and protect you.