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.

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

By Sanjeev Mishra

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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