Antivirus software also known as anti-malware, is a computer program used to prevent, detect, and remove malwares. Their primary purpose is to protect computers from viruses.

They protect users from: 

  • Malicious browser helper objects (BHOs) 
  • Browser hijackers 
  • Ransom-ware attacks 
  • Key-loggers 
  • Backdoor exploits 
  • Root-kits 
  • Trojan horses 
  • Worms 
  • Malicious LSPs 
  • Adware 
  • Spyware etc

Some antivirus also provide protection from other computer threats such as spam, infected and malicious URLs, phishing attacks, APT and botnet DDoS attacks.

Most antivirus programs have both automatic and manual scanning capabilities. The manual scan option enables to scan the individual files or the entire system. The automatic scan may check files that are downloaded from the internet, discs that are inserted into the computer and files that are created by the software installers. The automatic scan may also scan the entire hard drive on a regular basis. 


  • Two-way Firewall: Antivirus software provides two-way firewall protection. They check in every incoming and outgoing data packet through the internet and blocks the same if found suspicious.
  • Block ads and spam website: At present, most of the viruses and spam attacks are executed from the pop-up ads and other spam website whose original intention is to steal the personal financial information. Anti-virus blocks both of them. 
  • Parental control: Antivirus software may also allows seeing the activity logs of the user‘s activities. Thus, work as a monitoring tool for parents. 
  • Speeds up the PC: Most antivirus has built in modules to automatically detect and delete unwanted files and folders, thus increasing its performance speed.
  • Enhances lifetime of PC: Viruses destroy the PC gradually because they lower its performance. But after installing the antivirus, PC works faster and its lifetime enhances dramatically.
  • Restoration of corrupted data: Antivirus prevents the data from being corrupted.

Features to Look For:

  • Cost 
  • Malware detection rates 
  • Ransom-ware protection 
  • Firewall capabilities 
  • Wireless and identity protection 
  • User friendliness 
  • Whether allows sandboxing and parental controls 
  • Technical support quality 

Name: Bitdefender Antivirus Plus 
Free Trial: 30 day free trial 

  • Multi-layer ransom-ware protection
  • Password manager functionality  
  • Provides banking protection
  • Offers a Virtual Private Network


  • Unlimited VPN access requires separate subscription.


Name: Kaspersky Anti-Virus
Free Trial: 30 day free-trial 

  • Excellent phishing protection 
  • Great in malware and malicious URL blocking 
  • Full-scale phone and live chat support
  • Allows parental control
  • Manages and stores passwords


  • Bonus scans overlap each other significantly.


Name: McAfee AntiVirus Plus 
Free Trial: 30 day free-trial

  • Multi platform - Windows, macOS, Android, and iOS device 
  • Excellent phishing protection 
  • Provides ransom-ware protection and PC boost 
  • Act as password manager
  • Additional many bonus features.


  • PC boost web speedup works only in Chrome 
  • Mac edition has lesser feature than Windows or Android. iOS has even lesser features.


Name: Symantec Norton AntiVirus Basic
Free Trial: 30 day free trials

  • Excellent malware and exploit protection
  • Includes spam filter 
  • Password manager functionality 
  • Cross platform
  • Smart firewall 


  • Poor in phishing protection 
  • First full scan unusually slow 
  • Limited tech support 
  • Expensive