AVG free edition is an award winning antivirus which is available to download for free . It is a trusted antivirus which also provides antispyware protection for windows . Additionally , it includes Linkscanner shield which helps us to check the web pages for threats within seconds . It provides full security for internet browsing and searching . It is used by millions of users and all are satisfied with this free antivirus . And , the most wonderful thing is that it is quite compatible with all types of windows including Windows Xp , Vista and 7 . It is a non commercial antivirus and available to download for free .