you can go download.com than you can download your preferable antivirus. kaspersky will slower your PC much than the other antiviruses.
Please don't listen to the people above telling you to use AVG, it's terrible. If you have to use free, get MSE or avast. Otherwise, Kaspersky and NOD32 are good paid AVs.
i use avast antivirus 7.0.1426.. download it from avast website. register on website for 1 year free license.. after one year you can register for another 1 year free subscription.
I use Avast on my main machine and on my laptop I use AVG 2012. They're both great anti-viruses and I'd recommend both. Stay away from Security Essentials. It's horrible. NOD32 is a great paid AV though. ##
As we know that on internet there are so many antivirus are available over there like avast,avira,avg etc.
filehippo is the most popular site for downloading software.i have been using kaspersky antivirus for 6 months and it is protecting my computer from virus very well.
avast is free antivirus and very user friendly. go to google and search avast. You just need to register after installation then you have free antivirus with realtime antivirus, shields and browser protection.
I think Avast antivirus is the best antivirus for your PC because it has many options and easy to use and it is automatically up date your system.
Go for paid one which will be reliable for years. Getfiles has recommended Nod32 for best protection. Kindly follow the link which will help you understand why we have recommended it. http://www.getfiles.in/download/recommended/eset-nod32-antivirus/
I think Avira is good and free for you and can protect your importan files,But always remember to update your definision antivirus regulary to make your antivirus up to date.I sugest for you to always backup all important files in another backup media like dvd or external HDD.
I downloaded from the Avast official site, It is best security for computer machines from the viruses.