Avast is very simple in use.It is designed such that even one who is not familiar with it can use it.it is also available for android users.this is available at Google play store at free of cost.
Professionals with sensitive data should go for professional protection.
Avast antivirus is well known antivirus.Last month I purchased a laptop and I got avast antivirus for free with 15 month validity.it is very easy to install and use.
I recommend each and everyone to install avast for an all round complete protection for your personal computer and be free of any tension.