5 Popular Free Antivirus - Compared and Tested [ Windows ]

By Manav

Here goes the third part of the series on and this time we picked up 5 Popular Free and best  Anti virus softwares. Windows users and viruses are like chums, who keep playing Hide and Seek, with each other, and somehow the only tool to win this battle is, Antivirus Softwares. In this post I am trying to compare the five most preferred free anti virus softwares available on the Internet

AVG Free Edition

avg logo

AVG is the well-known antivirus. AVG is available free-of-charge to home users for the life of the product. It is easy to use and will not slow your system down i.e. low system resource requirements.

Features

  • Automatic update functionality, update files can be downloaded and transported to a computer which doesn’t have an Internet connection.
  • The AVG Resident Shield, which provides real-time protection as files are opened and programs are run
  • The AVG E-mail Scanner, which protects your e-mail
  • The AVG On-Demand Scanner, which allows the user to schedule and perform manual tests
  • Free Virus Database Updates for the lifetime of the product
  • AVG Virus Vault for safe handling of infected files

avgscan

The best things about AVG Free Edition are “Easy to Use” and “Lightweight”. Scheduler has few options as compared to other Antivirus Softwares, but sufficient enough as far as home use is concerned.

Drawback

I have realized that at the time when AVG is downloading updates, it consumes the max speed of your Internet connection for itself, leaving you face a substantial decrease in your connection, but that’s just a matter of few minutes i.e. 2 to 5 minutes

Download and Watch Video for AVG Free Edition.

Avast! Home Edition

avast home edition

Avast! Home Edition is the free antivirus for home noncommercial use - scans for viruses, worms and Trojans. It has a media player-like interface. Updates are incremental and frequently made available for manual or scheduled download.

Features

  • Simple User Interface-Memory test during the program startup, Simple and easy working with the scan results - actions with infected files etc.
  • Standard resident protection-Generic SMTP/POP3/IMAP4 scanner, Specific MS Outlook plugin
  • Network Shield-analyses all network traffic and scans it for malicious contents.
  • Automatic updates
  • Virus Chest - The Virus Chest can be thought of as a folder on your disk drive, having special properties that make it a safe, isolated place suitable for storing certain files. You can work with the files in the Chest, though with some security restrictions.
  • System Integration- integrates with the Windows Explorer right click menu and also includes a special screen saver which is able to scan your system while your computer is not in use
  • Support for 64-bit Windows

Drawback

According to my experience its not as lightweight as AVG, but still is quite lightweight and smooth. Scanning the whole drive takes longer as compared to AVG.

avastscan

You can download a 60 days demo, if you would like to continue free usage beyond that time, just register from the home page to obtain a free activation key by email, this key expires after an year, then again you can get a new key.

Download and Watch Video for Avast! Home Edition.

ClamWin

clamwinlogo

ClamWin is another free antivirus on this list. It comes with an easy installer and is open source code at no cost. The user interface is quite simple to use, being very lightweight is another virtue of this tool.

Features

  • Scanning Scheduler.
  • Automatic Virus Database Updates. ClamAV team updates Virus Databases on a regular basis.
  • Standalone Virus Scanner.
  • Context Menu Integration to Microsoft Windows Explorer; Addin to Microsoft Outlook.

Drawback:

ClamWin does not include an on access real-time scanner, that is, you need to manually scan a file in order to detect a virus, which reduces its fan-following, as compared to its counterparts

clamwin scan

Download ClamWin

Avira AntiVir

aviaralogo Avira AntiVir is effective protection against computer viruses. It constantly and rapidly scans your computer for malicious programs. Actions include repair, delete, block, rename and quarantine programs or files. AntiVir also features enhanced protection against unknown boot-sector viruses.

Through the permanent update of the detection engine, the protection is ensured constantly: the user can set the product to download any updates when available, thus keeping you clean and safe.

Features

  • Extensive Malware Recognition of viruses, Trojans, backdoor programs, worms, etc.
  • Automatic incremental updates of antivirus signatures, engine and entire software
  • Permanent virus protection, with Virus Guard real time monitoring
  • Install and configuration in just a couple of steps, setup to protect your PC in minutes
  • Virus protection against known and unknown threats, using an advanced heuristic system
  • Scheduler where you can set the scanner to make automatic virus scans or updates on your system
  • Forum and phone support, Knowledge Base with virus descriptions available on web site

Drawback:

You might find the configuration settings a little complex, in that case use the defaults.

Download Avira AntiVir

ThreatFire

threadfire logo ThreatFire ( formerly known as Cyberhawk) is a powerful, full-featured antivirus, which saves your system from malicious programs.

It works on a different mechanism, doesn’t just react on the basis of predefined signatures which protects you with the highest level of out-of-the-box accuracy. It keeps you safe between antivirus updates so you are always protected, no matter how new the threat.

Features

  • Immediately Effective with No Complicated Set Up
  • Proactive Defense against Both Known and Unknown Threats-it uses intelligent behavioral analysis to proactively hunt down and paralyze any activity or behavior that might compromise the security of a PC.
  • Rootkit Scanner Seeks Out Deeply Hidden Files, Objects and Registry Keys
  • Complementary to Your Existing Antivirus Software- no need to uninstall your pre existing antivirus.
  • Advanced Custom Configuration Options and Rules Settings
  • Virtually No Impact on System Performance
  • Built-in Web Search Provides Additional Threat Details
  • Continuously Improving Protection Technology with Technical Support

Drawback:

As it keeps training itself with programs behavior it might slow the system a little but its on lower side.

Download ThreatFire

Special Thanks to Nirmal whose post on 7 Free Anti-virus Software for Windows, was a good resource

A Quick Comparison

Name Updates Launch Time Effect on Resources and System Speed Real Time Scanning Protection Against Zero Day Threat
avg logo Auto and Offline 2 Doesn’t require much resources, hence doesn’t hamper your system’s performance Available No
avast home edition Auto 3 Takes much resources as compared to AVG Available No
clamwinlogo Auto 1 Almost no impact on System Performance Not Available No
aviaralogo Auto 3 Slightly heavy on resources as compared to AVG Available No
threadfire logo Auto 1 Quite lightweight. Available Yes

So which free anti virus would you go for ?

Thanks for your tremendous response in the last vote, Please do it again and help everybody to find the best .

Which of the Free antiviruses below would you choose ?

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People Reading Feed and Email Newsletters Please Click on PagePoll to add your valuable vote

 

About The Author of this article:
Manav is one of the co-author of this blog and writes on various interesting softwares, PC tips and more. You can read more of his articles here.

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21 Comments and Link-Backs to “5 Popular Free Antivirus - Compared and Tested [ Windows ]

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19 Comments from Friends and Readers

  • Nirmal, February 12, 2008:

    Currently I’m using Avira on my desktop and AVG free on my laptop. Thanks for the mention.

  • jhay, February 12, 2008:

    I currently use AVG free after switching from aVast in 2005. So far, I’m very pleased with it though the obtrusive update window that pops up really is really annoying.

  • Ashish Mohta, February 12, 2008:

    I am still using norton antivirus. I have heard it has lot of problems but I never faced. I have the corporate version which is just 18mb of installation but it might slow on startup.

  • TomS, February 12, 2008:

    I host several security related discussions in our area, so I frequently get asked about anti-virus, anti-malware issues.

    There are a couple of commercial products I used to like/recommend. But, because of changes in management/staff, they’ve done things that I disagree with, so I’ve come to advise against using them. In other cases, the security suites have become too hard to manage, or understand and are intrusive. I also noted that many casual users forget to update or renew subscriptions. They have AV installed, but the protection is ineffective and outdated.

    So I sat down and loaded several low-cost, light-weight products on test machines for my own comparisons. I used four of the five you tested, excluding Threatfire. The goal was products I could recommend for home users that would provide good protection without fail, and were easy to use.

    My tests ranked AntiVir as #1 in detection, but it had a higher rate of false positives on my test machines. It’s what I use on most machines for skilled users.

    Avast was second, with no false positives, and flexible monitor options. It’s what I recommend in most cases.

    AVG did well, but not quite as good as AntiVir and Avast at detection. The version I tested also had an awkward setup and management GUI. It’s third on my list.

    ClamAV is a good scanner, but lack of on-access detection stopped me from suggesting it to my demographic.

    I’ll have to look at Threatfire.

    I would mention, firewalls as an important item in combination with any of the above. that I recommend Comodo Personal firewall, with ZoneAlarm Home as my second choice.

    And yes, there is a performance hit for on detection scanning, but on typical machines, the hit is very small. Less than the load incurred by several office products that do background indexing. The commercial products I stopped recommending were more resource intensive. Folks seeing a performance issue might want to re-examine the list of auto-starting programs.

    In my test usage, I would set TaskManger to track CPU-TIME as well as CPU %, then run a regular list of tasks, web browsing and email checks. Typically my System_Idle CPU-Time would equal about 1hour at test end. My background AV-scanner use would be 2-3% of that, 1-2 minues of CPU_Time. When actively doing a FULL scan, CPU load % would run about 30-40%. However, with on-use detection, full scans need be done less often, scheduled for off-peak usage times. CPU usage is not an issue in that case.

    Oh — and I’m posting this with FireFox on Ubuntu 7.10, which has a very low antivirus foot print. It’s one O/S on my dual boot work machine. I only need XP Pro to host a few applications, like CAD and GIS mapping. Most work I do is from Linux. That is one of the other options I recommend more and more often.

  • Doug Woodall, February 13, 2008:

    I used Avast for years with great results. My wife still uses it on her puter with no problems.

  • Rakshit, February 13, 2008:

    I used Avast for over 2 years. But one day suddenly my system got effected with a trojan and Avast (updated virus database) failed to repair that.

    It was very disappointing. I immediately switched over to ESET NOD 32 Antivirus. Believe me, it’s just unbeatable. It’s worth trying.
    :-)

  • Ashish Mohta, February 13, 2008:

    @Rakshit: Is ESET NOD 32 free ?

  • Manav, February 13, 2008:

    @ Nirmal, AVG is my favorite as well, Your post was really a great resource for me. Thanks a lot.

  • Manav, February 13, 2008:

    @ jhay, yeah, that bothers me as well, in case of AVG, but as it happens once a day, so its kind of bearable. :smile:

  • Manav, February 13, 2008:

    @ Ashish, I heard about it from you earlier as well :???: , somehow could not try it as yet, will give it a try for sure.

  • Manav, February 13, 2008:

    @ TomS Thanks a lot for your comment, it looks like you really have given a lot to this study. Well i too felt AntiVir is a very efficient antivirus, but its like i have an old PC, which is already a bit slow, so AntiVir dsnt work great for me, as its a bit heavy on resources, I feel that you have somehow quite underestimated AVG, i use it on Windows, this might be the reason behind the different opinion.

  • Manav, February 13, 2008:

    @ Rakshit, I have heard about NOD 32 and its amazing performance, but I think its not free or it is??

  • Rakshit, February 14, 2008:

    @Ashish and Manav

    NOD32 is not free. They give a month trial after that their software will not get updated until or unless we purchase it. Having said that, after the trial period expires, their is no restrictions on software. I mean, we can use as long as we want, only thing is we won’t be able to update it.
    Who caresss???
    They launch the new versions of their antivirus very often. So, you can download the new version as soon as it is available.

    Simple
    :-)

  • Life Info Zone, February 18, 2008:

    hi buddy
    Wrote an interesting post!!U have done nice piece of work.Thanks a lot for sharing information.
    keep up the work.
    http://www.lifeinfozone.com/category/computing/

  • Manav, February 18, 2008:

    @ Life Info Zone, Thanks for appreciating.

  • Rick, March 3, 2008:

    Helpful and informative. Securing Windows machine is paramount, but too many products don’t cut the mustard for the end user. I haven’t tried or heard of Threatfire, but over the past few years I have had great luck keeping Windows systems clean by using AVG and telling the customer to use Mozilla Firefox exclusively as their browser.

    Thanks for a good article.

  • Jasmine, March 5, 2008:

    I used AntiVir around two years ago. My friends recommended me that time. But then I change to AVG free edition until now. I am satisified with the performance.

  • Dark, March 12, 2008:

    Thanks 4 the information about best antivirus..but someone told me that ESET Nod32 is the best anti virus…but…it is not free…and it can’t download the updates for viruses if your computer have no internet connections..that’s my problem…AVG have lot of downloadable updates but apple macintosh icon when it downloaded..Avast have no downloadble updates for computers have no internet connections…isn’t it..?i ask a help which is the best anti virus..which have downloadable updates for computers without internet connections..email me at hammettslash@gmail.com..Gud Day..March 12..2008

  • RON, July 15, 2008:

    TRY SPYWARE TERMINATOR IF YOU LIKE CLAMAV! It integrates ClamAV with a spyware scanner and PROVIDES REALTIME PROTECTION!

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