About AVG antivirus
There are both free and paid versions of AVG available, with the fee-based services offering you a greater level of protection. The AVG suite provides antivirus and anti-malware tools, plus blocks ransomware & fake antiviruses, and offers rootkit detection/removal as well as identity protection.
From the site:
Our job is to stop viruses before they even get to your PC. We check your files before you open them, your Facebook links before you click, your email before it gets to you and your websites before you visit them.
AVG Internet Security 2013 and AVG Internet Security 2013 Business Edition provide robust online protection for both home and business use. The products themselves benefit from a dedicated team of Internet security specialists and a worldwide user community, who help AVG to constantly advance its feature sets and product strength.
Engineered to work at a level appropriate to differing users’ needs, each of these products are suited for both home and office use. Their core role is to render viruses, spam, spyware and Trojans helpless while making identity theft, web exploits, drive-by phishing and rootkits a distant memory.