12 Free Antivirus Software to Download

For protection from malicious programs, you need antivirus software installed on your computer. Here are some free antivirus programs or software to download and install.

If you are looking for a free antivirus software for your computer then here is the ultimate list of 12 free antivirus software to download. You can use the 90 days trial version of Norton Internet Security at any point of time. But after those 90 days, you may use any of them if you don’t want to purchase the license copy for Norton or any other paid programs.

Here is the list of 12 free antivirus software with detailed descriptions and compatibility:

1. Microsoft Security Essentials

Microsoft has recently released a free antivirus software which is really effective. Installation of this tool doesn’t take more than couple of minutes and the system load is also very less. If you are a normal user and like to have a free antivirus program then you can try Microsoft Security Essential.

microsoft-security-essential Compatibility: Windows XP, Vista, Windows 7

Download Microsoft Security Essentials

2. AVG Antivirus

Most popular free antivirus program which is an award winner program for scanning a system for free. You can always trust AVG for virus protection.

avg-antivirus Compatibility: Windows XP, Vista, Windows 7

Download AVG Free Antivirus

3. BitDefender


Another award winning antivirus program for windows PC desktops. Protection level of BitDefender is also very good.

According to BitDefender release note,

BitDefender Free Edition uses the same ICSA Labs certified scanning engines found in other BitDefender products, allowing you to enjoy basic virus protection for no cost at all.

Compatibility: Windows XP and Vista

Download BitDefender

4. Avast Antivirus


Avast Antivirus is free for non commercial usage. This antivirus is one of the biggest competitor of AVG and it is growing rapidly.

Compatibility: Windows and Linux

Download Avast Antivirus

5. Comodo Antivirus + Firewall


Compatibility: Windows XP, Vista, Windows 7

Download Comodo Antivirus + Firewall

6. AntiVir


Use Antivir to protect your computer from viruses, worms, trojans etc. Free version is available to download.

Compatibility: Windows and Linux

Download AntiVir

7. ClamWin

Very simple but powerful antivirus where you can just select the drive and scan that with anti viruses.

Compatibility: Windows XP, Vista

Download ClamWin

8. PC Tool Antivirus


PC Tool Free Antivirus is tested program on Vista, XP, 2000 and it is an effective tool. According to the release note of PC Tool,

With PC Tools AntiVirus Free Edition you are protected against the most nefarious cyber-threats attempting to gain access to your PC and personal information. Going online without protection against the latest fast-spreading virus and worms, such as Netsky, Mytob and MyDoom, can result in infections within minutes.

Compatibility: Windows Vista, XP, 2000

Download PC Tool Antivirus

9. Immunet Protect


Small Antivirus firm but effective. You can try the free antivirus program supported by Immunet community.

Compatibility: Windows XP, 2000, Vista

Download Immunet Protect

10. Panda Cloudpanda-security

One of the best free Antivirus in the market and recommended by PC magazine as well. According to the Collective Intelligence Monitor,

Panda’s Collective Intelligence servers have analyzed 86.872.110
viruses and goodware files.

Compatibility: Windows XP, Windows Vista, Windows 7

Download Panda Cloud

11. Graugon Antivirus

Another free antivirus program which is very much recent but nicely build.

Compatibility: Windows 2003, XP

Download Graugon Antivirus

12. Rising Antivirus


Rising is anther free antivirus software thru which you can scan your system and protect. It is also in its initial stages and currently they are having 2009 version available to download.

Compatibility: Windows 2000, XP, 2003, Vista

Download Rising Antivirus

If you are aware of any other reliable and free Antivirus program then share your thought thru comments section of this post.

Poll: Free Antivirus Program

Related: Scan Your File Or Email Attachment Free With 41 Antivirus Using One Online Virus Scanner

Sanjeev Mishra is a professional blogger and an Internet Marketing Consultant based in India. He has built the Internet Techies to provide you updates in technology and web application area.
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  • Very nice compilation dude. My personal choice is Bit Defender

  • Rising, PC Tools Antivirus, AVG are hopeless. 2 Thumbs up for Avira…!

  • Thanks Yohan for your feedback about free anti-viruses. Avira is really good.

  • Thanks Ramkumar. I am glad that you shared your favorite one from the list.

  • I am using bitdefeder free it is good.

  • jonny

    I’m a BitDefender fan, too. If it’s ok I can share a contest-you can win 1 year license of Bitdefender Internet Security 2010.

  • Microsoft Security Essentials is good i try it form 1 month and i see that it’s good 😀

  • I don’t see Avast antivirus Free Edition in your list. However, the software suggestions are very good. Thank you.

  • Antivirus

    I would actually recommend holding off on Panda for now. There are some other cloud based antivirus programs that are really making better use of the cloud than Panda. I do appreciate what they are doing, I just think there are better alternatives for this type of application.

  • I am using nod32 very good

  • AVG Antivirus 9.0 free version is the best free antivirus in my opinion. I have researched on antivirus software a lot and have compared the antivirus programs on various scales. AVG Antivirus 9.0 Free is the best because of more than 1 reasons:

    AVG 9.0 is fast – It is second fast antivirus after ESET (paid) on #1.
    AVG 9.0 is stable – Most of the bugs have been taken care of, unlike the CA antivirus 2010 which is still being fixed for bugs.
    AVG 9.0 scored great – I tested AVG antivirus heavily and in my personal lab tests, AVG scared way above many free antivirus programs.

    My findings are based on heavy research. Apart from AVG, Avira is also a good antivirus software. Hope this info helps.


  • I Think its a good software but i prefer the Kaspersky

  • rohit

    I feel better after using codomo antivirus because it containing special features in respect to the other antivirus

  • BookFans

    Thanks for this Blog.
    Link for Graugon.com doesn’t exist. Others are ok

  • I am using MSE one of the best and ideal antivirus for windows machines. Although avast is also nice 🙂