Antiviruses are utility software designed to protect computers from any potential threats of data or hardware loss. It is highly recommended that the user must install an antivirus on an operating system like Windows. Antivirus software works in the background and monitors every software that is running and the emails or data coming from the internet. In case of any suspicious activity, antivirus alerts the user and asks for action. Normally, antivirus tries to clean the les and if not succeeded it quarantines the infected le. This is highly recommended that the user should update the antivirus regularly. Many antivirus software can be found on the internet and most of them are generally free. However, in the free version of antivirus, some advanced features are not available. Paid customers are called premier users and they get advance security features. The most common antiviruses are: 

(i) Avast 

Avast is one of the largest security companies in the world. Avast’s management claims that they are using next-gen technologies to ght cyber-attacks in realtime. They also claim that Avast has an immense cloud-based machine learning engine that receives a constant stream of data from hundreds of millions of users. This facilitates learning at extraordinary speeds and makes articial intelligence engine smarter and faster to stop viruses. 

(ii) Norton 

Norton antivirus has been a popular antivirus utility since 1991. This is a part of a large family of security and other utility software by Symantec Corporation. Norton Antivirus is easy to use, has the conguration options that experts need, comes highly rated by the testing labs and is exactly designed to have the least possible impact on your system performance.

(iii) McAfee
McAfee claims that it provides a combination of antivirus, privacy and identity tools and features. This enables users to stay protected against the latest virus, malware, ransomware and spyware attacks while keeping their identity and privacy protected and personal.

Define Antivirus 

Antivirus software is a type of program designed and developed to protect computers from malware like viruses, computer worms, spyware, botnets, rootkits, keyloggers and such. Antivirus programs function to scan, detect and remove viruses from your computer. There are many versions and types of anti-virus programs that are on  the market. However, the prime objective of any antivirus program is to protect computers and remove viruses once detected.

Most antivirus programs incorporate both automated and manual filtering abilities. The instant scanning option may check files – downloaded from the Internet, discs that are embedded into the PC, and files that are made by software installers. The programmed scanning process may likewise check the entire hard drive on a day-to-day basis. The manual scanning system enables you to check single documents or even to scan the complete network at whatever point you feel it is necessary.

Since new infections are always being made by PC programmers, antivirus programs must keep an updated database of the most recent malware codes. This database incorporates a list of “malware definitions” that the antivirus software implements when filtering records. Since new infections evolve every day  , it is essential to keep your product’s infection database up and coming. Luckily, most antivirus programs naturally refresh the infection database all the time.

While antivirus software is basically intended to ensure complete protection for PCs against virus infections, numerous antivirus programs now secure against different sorts of malware — for example, spyware, adware, and rootkits as well. Antivirus software may likewise include firewall features, which anticipate unapproved access to your PC. Utilities that incorporate both antivirus and firewall abilities are commonly called  “Internet Security Suite”.

While antivirus programs are accessible for Windows, Macintosh, and Unix platforms, most antivirus software is  compatible with Windows operating system. This is on account of the fact that most infections are focused towards Windows PCs and subsequently virus protection is particularly imperative for Windows clients. If you are a Windows user, it is important  to install a third party , feature-packed, robust antivirus program on your PC. Comodo Antivirus has been the best and compelling solution to outsmart even the zero-day and unknown threats with efficient features and technologies like default-deny protection, Host Intrusion Prevention, Auto sandboxing solutions and Containment technology