www.avast.com go there and download the home or professional edition! youll be good too go! ITS FREE!
also, go too www. download.com where you should locate MALWAREBYTES ANTIMALWARE! its the hottest tool available and ITS FREE! you should always keep this tool and never delete! it takes awhile on the first scan as it locate and eliminate all kinds of malware/adware and tracking cookies you never knew even existed on your computer! after the first run you will simply have too run it for 8 mins too keep you computer free of worms, viruses etc... this tool is a must! a lot of folks do not realize that the avg computer user in the area of 68% runs into malicious dangerous viruses, worms, adware etc.. the avg antivirus programs are not enough these days, you should download both of these programs and use them as a COMBO in your quest for computer security! promise! i had AVG, and many others, but this combo is 2nd too none! and it has a resident shield scanner that picks up on viruses before you even open the window!
go for it! THEYRE BOTH FREE AND RANKED AS THE TOP 1 OR 2 IN INTERNET SECURITY!