Now if you also also have thoughts to first try and then buy strategy then you have the plenty of options to try out, below I am publishing the best possible good list of antivirus programs that are for free… though it lacks some feature than the final paid release… like most of the time they not cure any .exe file infected but simple delete them to block further infection… while at the same time full and final paid first tries to cure the file…(have you ever noticed this….)

Now here we goes the Top 10 list of Antivirus Programs for Free…

1. Avast! Free Antivirus: I have kept this antivirus at the first place not because of it is best but it has the most sophisticated virus database. Its updates are easily available and it often seen as the biggest competitor to other antivirus programs. But what I have experienced it slows down a PC with low ram a bit, however, if you have the latest series then just try out this one. But there is one draw back also as it need you to register first to their website to use this free software… (though it is a matter of question almost every site in the world offering free product needs to you register first.)… other wise it is a good product to try out. (Download link…)

2. AVG Free Antivirus: I have tried out its paid version, though I have found it very effective… but here I am talking about its free version… the free version also has a pretty decent user interface- very simple to use. It also installs with in minutes. AVG is among the one of the oldest antivirus programs therefore it also has a lot user database at its party. (Download link…)

3. Microsoft Security Essentials: As the name suggest a very big brand behind its development, is one of the lightest and fast antivirus program. This antivirus is among the list having a high detection rate. Automatic updates also works perfectly fine. (Download link…)

4. Bitdefender : Bitdefender  is one of the best contender for top Antivirus software which provides advanced protection against viruses, phishing attacks, spyware, malwaere and various other real-time threats. It takes only minutes to download it and work without slowing down your computer speed. There is also a very nifty feature included in the latest version that it helps to protect leaking your personal information via E-mail, Web or IM. (Download link…)

5. Comodo Antivirus + Firewall: This is the relatively new virus  or we can say not a well knows among common users because it was first produced only as a commercial version, but later planned to release free for both personal and commercial use. It is also very simple to use, light on resources and doesn’t affect your computer speed. It offers real-time scanning, automatic updates, email scanning, detects worms and spyware. The virus definition is update daily and Host Intrusion Detection allows you to protect from attacking viruses, spyware, and other malware before they infect your computer. (Download link…)

6. PC Tools Antivirus : All-in-one program which can protect your PC from virus, worms, trojans and also included scanning of incoming and outgoing mails. It provides you on-demand scans and automatic updates. The negative points are that free edition offers limited support and updates are non-priority based which are essential for real-time virus protection program. (Download link…)

7. A – Squared Free : This is also one in the list of now well know antivirus though originally it was designed to detect only trojans or spyware but is gained popularity an antivirus scan engine Ikarus implemented. It scans your computer from  Trojans, Viruses, Spyware, Adware, Worms, Bots, Keyloggers and Dialers. The only negative point about this software is its large virus update size (Though it is also a reason why some people likes it most as being having the largest virus database it is well capable to detect a large number of unknown viruses also). (Download link…)

8. Avira AntiVir Personal : One of the best pick if you are looking for simple to use and light on Antivirus software. It works perfectly fine to detect virus, spyware, rootkit threats. The best part of Avira is that it is quiet outstanding in terms of finding malware. Few false positives about Avira is that it does not inlude E-mail scanner in free version, but if you open any infected E-mail, it comes again into action. And with every update, it shows advertisements but you have choice to disable them. I still believe that Avira is strong Antivirus program and you should try it. (Download link…)

9. Rising Antivirus : Rising Antivirus Free Edition is Antivirus solution from China. It is a simple program which runs low on the memory and do every bit of task that every other Antivirus software does. It protects computers against all types of viruses, Trojans, worms, rootkits and other malicious programs. One feature is good is that it provides full protection to your account information. It mostly updates on alternate days and if you are looking for “install and forget” program, this program is best. (Download link…)

Though in this article I have tried to include the top most free antivirus, but as I know the list can a long and I know you will definitely help me to get contains almost every free antivirus… so keep mentioning in the comment section with their download link… it will be added in the main section later …