Viruses are endangering the privacy and security of any computer users. From encrypting files to stealing valuable information and erasing data, computers must be protected from these threats. Therefore, the Internet is a limitless source of such free antivirus programs that protect your data from being endangered. Bearing in mind that the broad majority of secure antiviruses are requesting money, most of the free ones lack several features and extra functionality that other expensive antiviruses might have.
The most popular free antivirus is Avast!, a user-friendly tool that fights against lack of privacy, is specially designed for personal computers from home. The app can either automatically scan the network in search of threats or do it at a very high speed upon request. There is also one downside of this application: it is full of aggressive advertising of other Avast! Products.
Avira Free Antivirus
The second most secure online antivirus is Avira Free Antivirus, which promises protection against viruses, spyware, trojans and unwanted software. The application features multiple scanning options such as full system, processes scanning, or Windows folder scanning. Every user has the opportunity to perform this scan on the spot to schedule it. Some of the features are only available for the Premium memberships; therefore, the application requires a payment if you want to access more.
Panda Cloud Antivirus
Panda Cloud Antivirus is the first online free antivirus to be ever released. Ever since its release, the antivirus protects the system against potential threats assuring real-time checks. The system is based on Collective Intelligence System, which means that the application blocks in advance sites that cannot be trusted before they have the power to harm the computer.
Its design is very minimalistic, being very easy to choose between the options. The features might be limited, only a few scanning and blocking alternatives being available. One pitfall would be the enormous amount of false alarms the antivirus gives to its users, but overall the detection performance is similar to one of a paid antivirus, so it is one of the best free antivirus programs out there.