Viruses are small PC software which can replicate inside the computer guest. The purpose of the file infection are various. The virus can destroy data, wipe the MBR of Windows Operating Systems or cause significant computer slowdowns. The viruses have the ability to disseminate to such an extent that they can easily spread into the computer hard disk and from computer to computer by means of network connections. The viruses can spread rapidly through removable drives like: DVD’s, CD’s and USB drives. A good antivirus software can stop with success this type of infection.
The most efficient means of spread virus through computers is through network connections and Internet gateways.
Antivirus software represents a highly specialized class of programs which can be used to stop virus expansion. Most antivirus programs are designed to stop viruses that use “signatures”. These “signatures” are like a fingerprint through which a good antivirus software can identify easily which virus is present and active into the computer.
Best antiviruses software can identify a virus just because they knows the behaviour and the modes of operation of viruses. This type of detection is better and is called “proactive detection” or “heuristic” detection and is offered by the best producers. The antivirus monitors the files running and when it “sees” a suspicious behaviour (similar to other virus, known by the antivirus), it will block the activity of the file. This is way the antivirus software will be efficient in the future and better, stopping viruses to spread into the computer or from one computer to another.
Top ten best antivirus software
If you want to classify antivirus software by their power of detection and capability to remove discovered threats, you have a very difficult task, because you must compare the features and the real detection effectiveness. This happens because it is very hard to evaluate and compare antivirus software in order to find the best antivirus. For this comparison, we have tested ten antivirus software to make a top ranking of the best antivirus programs.
The antivirus softwares has been compared in terms of features, scanning capabilities, updates and antivirus laboratories certifications. Our top ten of the best ranking antivirus software is:
| Antivirus rank | Logo | Top best antivirus | Read review | Download |
|---|---|---|---|---|
| Rank 1 |  | Kaspersky Antivirus 2009 | READ REVIEW | DOWNLOAD |
| Rank 2 |  | BitDefender Antivirus | READ REVIEW | DOWNLOAD |
| Rank 3 |  | ESET Nod32 | READ REVIEW | DOWNLOAD |
| Rank 4 |  | AVG AntiVirus | READ REVIEW | DOWNLOAD |
| Rank 5 |  | Panda Antivirus | READ REVIEW | DOWNLOAD |
| Antivirus rank | Logo | Top best antivirus | Read review | Download |
|---|---|---|---|---|
| Rank 6 |  | Webroot Antivirus | READ REVIEW | DOWNLOAD |
| Rank 7 |  | Norton AntiVirus 2010 | READ REVIEW | DOWNLOAD |
| Rank 8 |  | Avast! | READ REVIEW | DOWNLOAD |
| Rank 9 |  | McAfee VirusScan | READ REVIEW | DOWNLOAD |
| Rank 10 |  | Trend Micro | READ REVIEW | DOWNLOAD |
