Avast Antivirus is an application software which is used to protect a computer from viruses and other harmful files, you can also download Microsoft Security Essentials for this purpose.
How to install this Software
Just watch this video complete you will get how to install Avast Antivirus 2013 on PC.
Description of Avast Antivirus 2013
Avast Antivirus 2013 is a software assistance application which is used to protect a computer from different kinds of viruses, malware's and other all unauthorized access users. This software is a best tool to protect your computer, because from all other antivirus software's it is simple and easy to use. As I use this software, so I will recommend this software to you.
It was developed by Avast, its full size is 116 MB and its latest version was released on 31st April, 2015. Before, downloading an antivirus software first we should know that what is a virus, Virus is a program which disturbs the normal working of computer. It occurs by downloading links from websites or by opening a file which contains virus.
After downloading antivirus software it will automatically aware you about the virus in your computer and then, you can easily scan it. But doing this is not enough, you should also upgrade your antivirus software regularly or weekly, then it will show proper working. But if you not do so, then your software will not work properly, so antivirus should be maintained regularly by the user.
I am using this software for my computer's protection and it always proved itself a useful software, it is simple to use. Its popularity is increasing day by day, users of this software are so wide that now, this software is available in all kinds of languages. So you can download it in your own language.