Antivirus tools are the kind of software applications that you need to use for an extended period of time in order to fully test them. Still, having only a few hours to try Kaspersky Anti-Virus, I must say I got a really positive impression.

After a slightly troublesome installation process which included the eventual uninstalling of other antivirus apps plus an updating process, you're ready to launch Kaspersky and let it take care of your computer. In fact, it monitors not only the file system, but also email and web browsing, thus providing you with a comprehensive security solution that will keep you safe from today's most usual dangers on the Web.

Kaspersy features several different scanning modes (Critical areas, My computer, Startup objects and Rootkit scan). Each one of them can be run manually or programmed to run according to a certain period of time. You can also define your own scan mode and set an exception list for those files, folders and apps that you trust and needn't be scanned. One thing I particularly liked is the possibility to create a rescue disk, in case your PC is completely ruined by a virus attack.

Kaspersky seems very light on resources, which is always good in a program that you must have constantly running. However, files and apps may take slightly more time to open while Kaspersky analyzes them. I guess this is a small price we have to pay for being a bit more secure. In any case, you may as well use the exception list and make sure all your trusted apps are included there.

Kaspersky Anti-Virus offers a complete protection against virus, Trojans and worms for your file system, email and web browsing.

Real time protection against viruses and trojans has never been more important and F-Prot Antivirus for Windows claims to have detected just about everything under the sun.

This includes worms, trojans and other threats against the security of your system. F-Prot works via the OnDemand Scanner which is your starting point for carrying out everything that the program is capable of. This includes scanning, changing the settings and updating the status monitor or at least, seeing what the status currently is. The date of the last virus update is always visible so you can see when the last virus database was updated. The program then checks for new virus signatures at various intervals whenever you go online. One good feature of this particular scanner is that it can also detect and scan external drives and even network drives. It also provides reliable realtime protection to deny any malicious attacks on your system by quarantining them before they can do any damage. your system access. It is however a rather clunky and cumbersome piece of software which seems to kick into action at the most inconvenient moments and takes a long time to scan. It does however seem to detect a huge amount of malicious data and is worth running just in case you think your virus checker is missing something.

A very thorough checker but could do with a few tweaks and improvements to make it more lightweight and discreet.

Security is one of the main concerns among computer users. This is why it's important to count on reliable applications that can protect our system and data from potential dangers. Sometimes free security apps are regarded as being less safe but you might change your mind after testing AVG Antivirus.

AVG is one of the handiest antivirus systems I've seen so far (and believe me, I've tested a few). Being a smaller application, AVG may not feature such a wide range of tools or utilities as the other antivirus programs do. However, it makes up for it by offering a neat, effective protection which stays silently minimized in your system tray and only activates when needed.

This is precisely one of the best things about AVG. It works completely in the background, without the need of half the system resources and of course, without constantly bothering you with warning windows or update messages. You can just go on with your work and you won't even notice you have an antivirus application up and running. Being the free version of a complete program, AVG shows the odd nagging notification encouraging you to buy AVG Professional which may annoy the more sensitive users.

AVG features real time system protection, an email scanner (which doesn't prevent spam from coming into your mailbox though – spam filter is a Pro-only feature) and as new features in AVG 8, an anti-spyware tool and the so called LinkScanner technology to protect your web browsing. The whole package should be enough to ensure you're not infected with any virus. Also, it integrates seamlessly with Windows Explorer, thus allowing you to scan files from their context menus. AVG's virus database is automatically updated on a daily basis, so you're always protected even from the most recently discovered threats. The program supports scheduled scans as well.

AVG Antivirus remains a perfect security solution for the average computer user, providing quite a powerful weapon against viruses.

Free anti-virus software can be a mixed bag - sometimes they can do more harm than good while at others, they can save you hundreds of dollars with solid real-time protection.

Avira AntiVir PersonalEdition Classic is the free version of Avira AntiVir PersonalEdition Premium. This doesn't mean that it's any less powerful bit it does mean that many advanced features are unavailable. The program can scan up to 30 different file types and seems to have been designed with a particular focus on Trojans according to the developer blurb. Protection is served in real time and as with all virus scanners, you are immediately given the choice whether to ignore, quarantine or delete the infected file. What's nice about this scanner is that for those viruses that it can't identify or clean, it compiles a report which can then be automatically submitted to Avira's lively user forum where someone, somewhere, should be able to help. The scanner sits in your system tray bit can be expanded to show the current settings and the status of any scans in progress. Scanning is quick and it doesn't slow your machine down significantly. Unfortunately however, it provides no option for scanning incoming and outgoing mail or adware/spyware but if you're just looking for a trojan blocker/remover, it's a very solid product.

A powerful and well organised anti virus scanner that helps you get to the bottom of virus issues rather than hinders your progress.

ClamWin is a Free Antivirus program for Microsoft Windows 98/Me/2000/XP/2003. It provides a graphical user interface to the Clam AntiVirus engine. ClamWin Free Antivirus uses the GNU General Public License by the Free Software Foundation and is free (as in freedom) software. ClamWin Free Antivirus comes with an easy installer and open source code at no cost.

The program features:

• Scanning Scheduler
• Automatic Virus Database Updates
• Standalone Virus Scanner
• Context Menu Integration to Microsoft Windows Explorer
• Addin to Microsoft Outlook

Security must not be a privilege. Under this motto, Emsi Software provides the Malware scanner a-squared Free completely free of charge for private use. But it is not a very limited version, it is a full tool to clean your computer from Malware. Not only Spywares, as detected by classic Anti-Spyware programs, but also especially Trojans, Backdoors, Worms, Dialers, Keyloggers and a lot of other destructive pests, which makes it dangerous to surf the web.

Frees your PC from Malware

Use the a-squared Free Scanner to scan your hard disk, remove all infections and restore your PC to maximum performance.

Quarantine for emergency

Sometimes it is possible that the system may be unstable after removing Malwares because it already manipulated too much. Therefore it is recommended to place detected Malwares always in Quarantine first before removing it permanently.

Daily updates for the best protection

Don't forget to run an online update before you scan your computer with a-squared Free. Note: The automatic update feature is only available in a-squared Anti-Malware.

Exceptionally easy to use

Regardless of whether you are a computer expert or a beginner, you will quickly become familiar with a-squared Free. You do not have to be a specialist to free yourself from Malware.

RemoveIT is a free trojan, adware and spyware scanner that searches and destroys dangerous viruses, trojans and spyware.

However, the effectiveness of it is open to debate. The developers claim that it's so good, it "locates and removes many new dangerous files including spyware, malware, virus, worms, trojans and adware that other popular AV programs do not find." This program therefore is NOT a real-time scanner - it's based on cleaning-up after something has installed itself on your PC rather than real-time protection which I always think is a dangerous approach.

There's nothing flashy about this program - the interface is based on Windows Explorer shell which also includes a slightly more advanced and expanded version of Windows Task Manager (to stop and block illegal processes) and the same with a Service Manager which gives you an overview of the services and program currently running on your PC. With these tools, you have more control over what runs on your PC both during startup and day-to-day operation. The Services Manager is recommended for beginners as you can see clearly the actual names of the programs running while the Process Manager only shows those files that are running as parts of programs and as a result, you may shut something down that you didn't mean to.

For a free and light malware scanner, this is a solid program although it does not seem to detect anything that other scanners (such as Ad-Aware) can't so it's maybe not as effective as the developers claim.

RootkitRevealer is an advanced patent-pending root kit detection utility. It runs on Windows NT 4 and higher and its output lists Registry and file system API discrepancies that may indicate the presence of a user-mode or kernel-mode rootkit. RootkitRevealer successfully detects all persistent rootkits published at www.rootkit.com, including AFX, Vanquish and HackerDefender (note: RootkitRevealer is not intended to detect rootkits like Fu that don't attempt to hide their files or registry keys).

Moon Secure Antivirus aims to be the best Windows antivirus program based on open source (GPL) code.

Like all good antivirus programs, Moon Secure Antivirus offers protection in real time using the ClamAV database.

You can specifiy exactly which parts of your network Moon Secure checks even devices connected by USB.

However, Moon Secure has very few options although it doesn't consume much of your PC's resources making it a handy lightweight option.

Trojan Remover is designed to aid in the removal of Trojan Horses and Internet Worms when standard anti-virus software has either failed to detect the problem or is unable to effectively eliminate it.

The majority of Virus and Trojan Scanners are able to detect malicious Trojan Horses and Internet Worms but aren't always very efficient in removing them once triggered. Trojan Remover aims to carry out such a removal without the user having to manually edit system files, including the Registry. The application removes the additional system modifications that some Trojans carry out, which are often ignored by other Virus and Trojan Scanners.

Some anti-virus programs cause more problems than they solve. Avast! Home Edition anti-virus is thankfully not one of those as it exceeds expectations while remaining free. Lightweight, vigilant and most importantly, effective, this could be the answer to your prayers if you’ve had no luck finding a virus checker you like.

The developers make a point of stressing that this program is strictly not for institutional use – it is designed specifically for the threats most home users face daily. Their philosophy is that efficient home virus protection is essential in preventing users one day being struck by a serious global virus. What impresses you immediately with Avast! is its vigilance. It’s likely that within minutes of installation, you’ll receive a pop up alert due to a Trojan or virus that had been incubating on your PC. If not, rest assured that it won’t be long before Avast! sets off its trademark siren and alerts you that something has been detected. The latest version of

Avast’s antivirus kernel promises 100% detection of ‘In-the-Wild’ viruses (viruses already spreading between users) and excellent detection of Trojan horses. Avast! provides 24 hour protection via its ‘On-Access’ scanner but you can initiate manual scans via the fairly simple user interface. You can start additional modules from here, such as the Virus Chest, Updater or Log Viewer. Another great feature of Avast! is the option to change the skin of this interface. The developer website features practically hundreds of distinctive designs made by aficionados and even offers a guide to designing your own.

Something often overlooked by major virus checking packages is P2P applications installed on your PC but Avast! covers this with a P2P and Instant Messenger shield. Whilst chat applications themselves do not impose any serious security risks in terms of viruses, their less sophisticated file sharing methods can easily lead to virus infections if not properly monitored. With so many infected files on P2P networks such as Kazaa and eMule too, it’s also good to know that Avast! won’t let you open them without quietly checking them first.

The program also features both a Web and Network shield that constantly monitors traffic. The Web Shield acts as a transparent HTTP proxy and is compatible with all major web browsers. One of the truly outstanding features of Avast! is that unlike heavyweights such as Kaspersky or Norton, you hardly notice it working in the background. This is because of a unique feature the developers call ‘Intelligent Stream Scan’ that scans objects on-the-fly, without needing to cache them locally. Even the virus updates are unobtrusive. Avast! downloads the updates gradually and only those that are absolutely essential instead of the whole database. You receive a ‘Virus database has been updated’ voice message every time this has been completed along with a small popup which you can turn off if it annoys you.

There really is little to fault Avast! on in a market that is saturated with too many ineffective virus checkers. Although it doesn’t guzzle resources, if you’re running it on an older machine, you might find it slows you down. Some new users also complain that conducting a simple manual scan is more complicated than it should be but if you’ve spent anytime with virus checkers, you’ll realise that its more than worth your while getting to know this excellent program.

ClamWin is a simple, powerful and most importantly, free antivirus checker for Microsoft Windows.

The program features an easy to use GUI and the developers claim high detection rates for viruses and spyware although it doesn't seem to find anything extra or beyond what other anti-virus scanners find. The full program is facilitated by regular virus database updates so that's its generally always updated with the latest threats to your system. Unfortunately ClamWin Portable has scheduled scans and updates disabled so that the program is not locked in huge updates every time you activate it on the move. The downside of this of course is that it's never up to date with the latest threats. The big advantage of this version of course is that you can take it pretty much anywhere on a USB stick. However, the program does not feature a real-time scanner which means that scanning for protection is down to you. You have to manually scan your system with the program every so often to see if you have been infected with anything.

Free, portable and easy to use, this is a decent anti virus solution let down by the fact that it doesn't scan in real time nor update itself automatically unless prompted.

A good antivirus tool is one that regularly updates its virus definitions and that can really clean deep into your PC. With Multi Virus Cleaner you're limited to scanning your PC, whether particular files (custom), quick scan or full and deep scans. The application can be regularly updated and claims to protect you from over 5,900 viruses. There's a list of virus signatures in the updates section, but it doesn't appear to be exhaustive or to take into account the latest ones.

We found most scans to be fairly lenghty and not particularly effective. The program only gives you two options when a virus is detected, delete or ask you what to do, to which you usually respond by deleting the virus anyways. Multi Virus Cleaner does not show you the time spent scanning your PC but you can follow the progress, see how many files have been scanned and what files the program is working on.

PC security is not something you can fool around with, and that's why you should always try to have one of the best security suites installed. Multi Virus Cleaner unfortunately is not a security suite. It provides basic scanning possibilities, which, alone, are not sufficient to keep your PC secure.

AIM Fix was created to remove all known AIM viruses in one consolidated removal tool. It is designed to end the virus processes, delete the files, and remove registry keys created by the virus.

AIM Fix was created to remove all known AIM viruses in one consolidated removal tool. It is designed to end the virus processes, delete the files, and remove registry keys created by the virus. The tool is updated very frequently, in an attempt to make sure it removes all AIM viruses. As long as the developers become aware of the virus, it is removed by AIM Fix.

Anti-Trojan Elite (ATE) is a malware remover. Malware is software designed specifically to damage or disrupt a system, such as a trojan horse, spyware or a keylogger. Anti Ttojan Elite contains a real-time Firewall, monitors system processes and cleans any malware immediately. It is also a system security tool, allowing you to view and control processes and TCP/IP network connections.

Anti Trojan Elite is a trojan/keylogger remover. When the trojan horse will run, Anti Trojan Elite can find out the trojan and stop it in time. Anti Trojan Elite is also a system security tool, it can view the informations of network and process. Anti Trojan Elite can monitor any change of important registry keys and values.

Have you ever wanted an open-source portable anti-virus solution that you can use anywhere at anytime?

Protect Simple Machine is just that - a portable and free anti-virus app that fits on your USB pen and makes sure that the computer you are using is not infected by viruses, worms, Trojan horses or spyware. Created with Visual Basic, the program is incredibly simple to use and can analyze any folder or disk you choose. It also advises you on ways to "tweak" Windows so you can optimise Protect Simple Machine for more effective, faster use. It also has direct links to other Windows tools such as the command line.

Nowadays, one of the most important areas to scan is the memory and Simple Machine Protect also caters for this with a memory scanner which works alongside the disk scanner. The program warns you if it finds a virus with a very primitive "beeping" sound and it can sometimes repair them on the spot, depending on whether the database is equipped with a sufficient solution. At all times, the program lets you know at what stage the scan is at with a progress bar.

A very convenient solution for those on the move although it's a bit lightweight and tends to miss minor viruses and Trojans that more solid scanners pick up.

There are many anti-virus, anti-spyware and anti-dialer software products but only a few of them can claim to provide effective protection from all types of Malware. The main reason for this is the eternal cat and mouse game played for decades between Malware programmers and the security industry.

Normal security software is limited by the fact that it can only recognize Malware for which the manufacturer has already created a signature - assuming that the manufacture even has a copy of the Malware available for analysis.

Emsi Software has now turned the tables and no longer trails behind the Malware authors. a-squared Anti-Malware does not identify damaging software purely on the basis of signatures, but also looks at how it behaves. This means that you will be protected from the hundreds of new Trojans, Worms, Dialers, Rootkits and Spyware that appear every day.

PC Tools Antivirus enables you to protect your system from the most common threats such as viruses, trojans, worms and other undesirable creatures.

Despite the "Free edition" tag, I was glad to see that the program really works and it's not crippled in any way. That is, it scans your system and whenever it detects any danger, it prompts you to disinfect, put into quarantine or actually delete all affected files. However, bear in mind that if you select a full scan, your system is going to be very busy for a while. Luckily, you can schedule these scans to be performed when you don't need to work on your PC.

The program features some other typical antivirus functions, such as real time protection and seamless integration with Windows Explorer, which allows you to scan a file with just a mouse click.

PC Tools Antivirus displays a nicely designed interface with big, bright buttons for the most common tasks and a wide range of configuration settings that enable you to tweak the program's behaviour. I also liked the fact that it doesn't hog system resources, so that your PC can comfortably run even if real time protection is on.

BitDefender is one of the most comprehensive protection packages out there for your PC. Covering everything from an anti-virus protector to Trojan blocker, it's a package for someone who doesn't want to install lots of separate ones.

The program is updated hourly which is both good and bad in equal measure. Good in that you're always protected but bad in that it can slow your system down a bit. The good thing is if your PC does crash at all, BitDefender automatically repairs and updates itself once you've restarted your PC. For those that upgrade to the full version, there's a 24/7 helpline via phone, email or chat at no additional cost. There's a NEWGamer Mode which temporarily modifies protection settings to minimize their impact on how your game performs so that you can play games with peace of mind. The anti virus is pretty powerful which blocks unknown viruses using what the developers call "advanced proactive detection techniques". In addition to all this, it includes a CD burning backup facility plus a tuneup utility to keep your PC operating at optimum performance.

An excellent all in one package although the updates a re a bit too regular and it takes your time to find your way around.

For all those concerned with the safety of their PC, Bitdefender offer this unique and comprehensive solution, which contains everything you need.

BitDefender Total Security comprises, in addition to an anti-virus program, a firewall, anti-spam, parental control and privacy, a backup utility and an optimizer. With all these tools, your PC will be safe from viruses, hackers, spyware, spam, phishing, and you can protect your children from adult content.

BitDefender antivirus Total Security also provides real-time protection against spyware and other types of malware, including rootkits dangerous. It's particularly effective at blocking spam in Microsoft Outlook 2000, 2003, 2007, Outlook Express, Windows Mail and Mozilla Thunderbird 1.5 and 2.0. There's also a useful "game mode" for gamers which reduces the impact of the program whilst you are playing to avoid affecting the performance of the game as little as possible. All in all, there's not much more you'll need although the free hourly updates do become rather tiresome especially if you have an older machine.

Everything you need in one package - an excellent protection solution for those who want the ultimate solution in one.