Mar 242010

Antivirus software is a term used to describe a computer program that attempts to identify, neutralize or eliminate malicious software. This type of software is so named because the earliest examples were designed exclusively to combat computer viruses; however most modern antivirus software is now designed to combat a wide range of threats, including worms, phishing attacks, rootkits, trojan horses and other malware.

This tutorial we will see list of free antivirus software available windows operating system

Avast Free antivirus

avast! 4 Home Edition is a full-featured antivirus package designed exclusively for come users and non-commercial use. Both of these conditions should be met! Our company offers the Home Edition free of charge, since, in our opinion, it is possible to avoid global virus spreading by efficient prevention; however, many users are not able to or do not want to pay for antivirus software.

Supported Versions :- Windows 7/Vista/XP/

Download avast! from here

Latest Version :- 5.0.462

AVG Anti-Virus Free Edition

AVG Anti-Virus Free Edition is an anti-virus scanner that offers Resident protection, e-mail Scanner, On-Demand Scanner, and Virus Vault for safe handling of infected files and automatic updates. The free version is limited in features, but includes all basic scanning functionality as well as real-time protection. It uses the same scanning engine as the commercial version, however updates are provided on low priority basis.

Easy to use, low system resources
Automatic update functionality
Real-time protection as files are opened and programs are run
AVG’s Virus Vault for the safe handling of infected files

Supported Versions :- Windows 7/Vista/XP/2000

Download AVG from here

Latest Version :- 9.0

Avira AntiVir Personal Edition

Avira AntiVir PersonalEdition Classic offers the effective protection against computer viruses for the individual and private use on a single PC-workstation. It detects and removes more than 50,000 viruses and an Internet-Update Wizard for easy updating. The built in resident Virus Guard serves to monitor file movements automatically, for example when downloading files from the internet. Heuristic scanning protects Protection against previously unknown macro viruses.

Supported Versions :- Windows 7/Vista/XP/2000

Download Avira from here

Latest Version :-

Microsoft Security Essentials

Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.

Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. It’s easy to tell if your PC is secure — when you’re green, you’re good. It’s that simple.

Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want—without interruptions or long computer wait times.

Supported Versions :- Windows 7/Vista/XP

Download Microsoft Security Essentials Anti-Virus from here


Free, small footprint anti-virus and anti-spyware scanner anti-virus software tends to be big and bloated, use plenty of RAM and system resources, and generally clog up your system. Worse is that increasingly, anti-virus makers make it difficult to buy anti-virus software by itself, and include firewalls, anti-spyware and other software with it. If you want a clean, mean piece of anti-virus software that does just one thing — protect against viruses — you’ll want this program.

t has a small footprint, and doesn’t take up much system resources. It will scan your entire hard disk at once for viruses and spyware, or can scan individual files and folders.

It also includes a Microsoft Outlook add-in to remove virus-infected attachments automatically from your email. There is one drawback to the program, though: It oesn’t include real-time virus protection.

Supported Versions :- Windows 7/Vista/XP/2003/2000/Windows Server 2008 and 2003

Download Clamwin from here

Latest Version :- 0.95.3

PC Tools AntiVirus Free Edition

PC Tools AntiVirus Free Edition is an anti-virus scanner, that provides real-time protection against viruses, worms and Trojans. It also offers on-demand scans, as well as automatic updates and real-time scanning of incoming and outgoing mail.

Other features include heuristic scanning and scheduled scans. The Free Edition offers limited support and non-priority updates.

Supported Versions :- Windows Vista/XP/2000

Download PC Tools AntiVirus from here

Latest Version :- 6.1

Dr.Web CureIt

Dr.Web CureIt is a standalone anti-virus and anti-spyware scanner that scans your PC for viruses, trojans, adware, spyware, hack tools, rootkits, and other malware. The program does not require an installation and can be run from a USB drive. This is an on-demand scanner only, it can detect and remove virus infections but does not provide any real-time protection. Dr.Web CureIt is based on the ICSA certified Dr. web scanning engine and should provide reliable detection.

Supported Versions :- Windows Vista/XP/2003/2000

Download Dr.Web CureIt from here

Latest Version :- 5.0

BitDefender Free Edition

BitDefender Free Edition offers ICSA Labs certified virus scanning of your files. It includes an on-demand Virus Scan, Scheduler, Online Update, Quarantine and reports. In addition, the scheduler allows you to scan selected files, folders or drives automatically at user specified intervals. BitDefender can scan inside archives, mail databases (Outlook etc.) as well as the boot sector. The free version does not include on-access or email scanning, so it is not suited as your only virus protection, however it is useful as a `second opinion scanner` since it integrates into the Explorer right click menu, and lets you easily access it when you need to scan a file.

Supported Versions :- Windows Vista/XP/windows home server

Download BitDefender Free Edition from here

Latest Version :- 10

MicroWorld Free AntiVirus Toolkit Utility

MWAV provides you with a FREE utility to enable you to scan for any virus, spyware, adware or any other malware from your computer. MWAV requires no installation and can be run directly from any where on your computer or from a CD ROM. It can also be run even if you have any other antivirus software installed on your computer.

The detection database will constantly be kept updated on a daily basis to detect newer spyware and adware, plus the engine is constantly being improvised for faster and intelligent detections.

Supported Versions :- Windows 7/Vista/XP/2000/windows server 2008

Download MicroWorld Free AntiVirus Toolkit from here

Latest Version :- 11.x

Antidote Super Lite version

Freeware lite version of the commercial Antidote program. It utilizes the same virus database as the commercial version.

Supported Versions :- Windows XP/2000/98

Download Antidote Super Lite version from here

Comodo Anti-Virus

Comodo Antivirus provides real-time scanning, where it resides in memory and checks your programs for viruses as they are run, as well as on-demand scanning for viruses. You can also schedule your scans. It automatically updates itself through the internet. This is a Windows program.

Supported Versions :- Windows 7/vista/XP/2000

Download Comodo Anti-Virus from here

Latest Version :- 4.0

If something is missing from this list please let us know we will add to this list.

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  54 Responses to “List of Free Antivirus software for windows 7/Vista/XP/2000/Windows server 2008/2003”

  1. thanks for this list for choose to kind of antivirus

  2. from the list you had mentioned which one is the best?

  3. avast,AVG,Antivir

  4. Searching for avast key edition 4.7

  5. Is Spyware any good??
    Thnx for the list, it helps a lot.

  6. nice list! add more antivirus softwares.thanks

  7. please prepare norton to be free download.

  8. vikrant you will be lucky to get a free download of norton, that would be piracy and could get you arrested. This is a list of free non pirated antiviruses, if you have to pirate a copy of norton then go elsewhere to get it.
    nuf said

  9. hi,
    i looked at yr list, as am new with antiviruses ,
    and are using a netbook ,with xp programme,
    i dont know which one to choose.
    and ,are they totally safe,?my carsperski free antivirus ,stops tomorrow..
    should i delete it , first ,and then try to add ,avast,for example?
    thank you so much , and blessings :)

  10. Downloading AVG. Thanks for the list. I used to have an old version of Norton, except It’s not compatible in Windows Vista and I’m not bothered to buy another one.

  11. I tried to download the AVG protector, and I couldnt get it to work. I have a Windows Vista with Norton antivirus still on, but I cant pay to have it kept on.
    When I was downloading AVG, a box popped up that asked me if I wanted to continue, and I hit continue, than a box small box popped up that said FILE IS CORRUPT!!
    Is it because I didnt get rid of Norton yet? I tried another antivirus protector, and the same thing happened. What should I do? Norton is still running, but I havent paid for it and I dont know how long it will keep going for.
    Please help

  12. HI, i am using Vista Business with a great combination of Avast and Windows Defender. I think its the best FREE solution.
    P.S. Great List by the way. THanks

  13. Sir,
    I got Windows Vista. Which antivirus I should use for Vista. Pls suggest. Regards

  14. Hello,
    I most recently had my comuter redone. I really dislike anti virius that bugs me all the time and gives me trouble. I actually haven’t had it in the last 5 years…. til now . I would like to find one that would suit me and work for my computer which runs on xp. If you could assist me in my search I would be very apperciative. Thanks

  15. tq for the info.

  16. I Use Windows Vista. Which anti virus I should use for Vista. Pleas suggest.

  17. sir, I have windouws vista and Norton antivirus is going to expire. which will be better for my PC and I want to (free) download from internet. plz advice me.

  18. I have windouws vista and Norton antivirus is going to expire. which will be better for my PC and I want to (free) download from internet.

  19. I’m having same problem as Patricia from 1/24/09. I have Vista OS, and when I try to download AVG, Avira, or Avast the download is extremely slow and I eventually get message installation cannot complete, file corrupt. I have already deleted Norton and have no other antivirus programs running. I would like to download free antivirus software, but so far cannot. Can you help?

  20. Hi…
    Thnx a lot 4 ur list… i´m mounting a server with Win2K3, nd need free AV that works with it.
    ur list helped me a lot! i´ll prove feww of them nd i´ll see wich one results better to me…
    best regards

  21. i have vista on my daughters computer and cant afford antivirus for her im a single father what one should i download for her

  22. Guys, you dont have to worry no more… The best free antivirus on the market is avira!!!

    Ive been using it for 6 months now and my pc is spotless..if u wana get a second opinion whether ur avira really works, try downloadiong the kaspersky trial version and run a full scan with avira disabled in order to see the results.
    Also, kaspersky is pretty cool,..pity its not free

  23. I have windows 2000 and everything takes forever to download. I tried AVG and it didnt work. I also tried clamwin. Is it because I have 2000?

  24. need antivirus for 2003 server enterprise edition

  25. URGENT!!!

    Hi, thank you so much for the list! Helped me alot and narrowed my search for the many different kinds of antivirus now-a-days.

    However, which from your top 3 list is the best antivirus for me? I have a 1GbRAM 1.73GHz Core-2-Duo laptop that runs windows vista home basic. It came with norton antivirus already but it has expired couple of days ago.

    I’m looking for an antivirus thats not heavy for the system since I’m needing it for this laptop… We all know that laptops performs slower than a desktop computer even if you get the best performing laptop in the market. So I need something that does not freeze, pause or slow down the system as I use it or while I’m on it. Coz there are few antivirus I’m aware of and have used in the past that slows down the system that it takes a few seconds or even a minute or so just to open a window or a file. This is crucial for me specially that I’m always using my laptop for LIVE MULTIMEDIA (music performances,videos,presentations) purposes.

    Can you help me figure out which FREE antivirus bests fits for my laptop??? It would be a great relief and a great satisfaction if you could help me figure out which one.

  26. I am computer illiterate, but can anyone answer my question of why does a person have to give out their credit card info if these are supposed to be “free”? Just curious. Thanks!

  27. Hi all, most of these free antivirus are not helping except few of them and dont even think of downloading AVG free, but what stopping you from buying real antivirus, is it because of the cost? well dont worry i will give you a tutorial for free where you can be making more than $1000 a week that is trading currencies which is the most effective business globally now. You can contact me via my email for more detail;

  28. Hi, I wanted to know what the best anti virus is for my Vista. From, Nancy Gill

  29. hi,i am using windows vista and my norton security virus is going to expired after 2 days,can u advise me which free downloading antivirus is best suit in my software.waiting for the feedback.thank you

  30. I tried Avast (full paid version) and thought it was TERRIBLE!! I was in the middle of a game and all of a sudden my computer crashed. After a LONG journey I found out it was because the antivirus program failed to catch the trojans. Since then, I have used Norton’s. I know Norton is kind of expensive (especially when you don’t have the money to really spend on it) but it’s well worth the price versus the headache of viruses :)

  31. Hi I can’t afford to pay for new antivirus software. Have McAfee at minute, but it has expired. Can you tell me how to get free software which is compatable with windows vista. I know norton is useless. Thanks for your help.

  32. Hi , i really have a problem, my computer uses windows vista with 64 bit system and i can’t find the best antivirus to use and i dont have a credit card to pay for one and there is no other ways so i will use a free one , but plz tell me which one is the best to me . plz plz
    & if any one have an advice plz contact me or send an email

  33. Hi, am a student using vista laptop and I can’t bye antivirus. The former antivirus that followed come is McAeef and I don’t have money to buy a new one. Please help which one to download now

  34. thanks a lot….

  35. got a vista laptop just tried uninstall avg , but cant get rid of icon , no other free virus softwear will dowload or install any ideas or advice

  36. Hi, am a student using vista laptop and I can’t bye antivirus. The former antivirus that followed come is McAeef and I don’t have money to buy a new one. Please help which one to download now

    Comment by omolola on November 4, 2009 @ 8:28 am Uninstall existing McAeef and download avast antivirus home edition that should work for you

    Comment by admin on November 4, 2009 @ 10:12 am

    they mean McAfee

    P.S if i have expired mcafee and the AVG free edition that is being terminateed on 1st december which should i get i have netbook with vista

  37. Please reply asap thank you in advance… hopefully

  38. I find Windows Live One Care takes care of all 3 computers and no worries. This is year 2 of my subsription.

  39. hii sir mere pas windows vista hai mai is samai mcafee anti virus us kar raha hu mujhe batao ki mai ab kaun sa use karu….

  40. Try Fortinet’s FortiClient. Its a free application includes, VPN/Firewall, Antivirus and lot more other networking security options. The firewall is really awesome.
    Try it here:


  41. respected sir i am a student from nepal and wanna study computer harware engineer full courses
    i have completed my advance hardware&networking courses and wanna learn more and be a it engineer
    please help me
    u can call me at +9779806559179

  42. There is no 100% fool proof AV. We were using McAfee at work and it flagged a windows system file as a virus crippling 8 machines and thousands worldwide! It could have been any AV that did it, McAfee just happens to have a very large market share and so it was most noticable.
    Of all the free ones I’ve tried, Avast is currently the one I would recommend for Windows, coupled with Malware Bytes as a backup scanner. IMHO Avast has stronger Rootkit protection than AVG (AVG provides rootkit heuristics with the paid version but only minimal protection for the free — rootkits are the nasties that are hardest to remove once you get them). You should never assume that an antivirus program will stop everything whether you’re paying for it or not. The virus makers are always one step ahead so a little common sense in opening untrusted content is worth far more than any AV free or otherwise.

  43. thanx for this list but it good without offers

  44. Sir,
    I tried AVG and it didnt work.

  45. Your list indicates a number of programs compatible with windows 2000, however, a number of them no longer support windows 2000, for example; AVG and others. What I want is a free antivirus for windows 2000 with real time protection, not just a file scanner, and I cant find one.

  46. Finding protection for 2000 OS, SQL, Office, etc will be very hard. It is over 11 years old and even unsupported by Microsoft. I will suggest the simple upgrade to at least 2003.

  47. Hey – there is a reason, why someone (as eg I) does not want to upgrade from W2K.
    It is so tiring if one has always to justify why he is still content with a running system.

  48. You guys missed the best “Free” one !

    I have seen AVG and Defender beaten and the only one that can’t be topped is SuperAntiSpyware !!

    I went on a computer that was riddled with Adware, Trojans, Cookies and Spyware. It prevented me from opening Defender and AVG. I ran SuperAntiSpyware and it cleaned out 1139 threats and has been running smoothly ever since.

    Top that !

  49. @ Command: Why would I spend quite a lot of money, and endless hours of reloading, replacing and reconfiguring other programs to “Upgrade” from a totally stable system which runs all the programs I want ( and unlike the new systems, almost certainly isn’t having many new viruses written specifically for it ).
    The only reason I, and I assume manathumga and Burt are her, is because this page claims to list win2k compatible free anti-virus programs, which from my point of view, is the main limitation of Win 2k

  50. @ All Windows 2000 users.

    Avast Free 7.x does work, provided you have SP4 AND rollup 1

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