What Is Antivirus? Free Antivirus Software

Antivirus is a program used to remove any malicious program from your computer.

                   

     

It works against any type of malware (malicious + software) like virus, trojan horse, worm, spyware, adware etc for safe and sound computing. You may need different types of anti-malware program to remove different types of malicious softwares. There are some very popular antivirus software:

• Kaspersky Antivirus
• Avast Antivirus
• AVG Antivirus
• Microsoft Malicious Software Removal Tool
• Avira Antivirus
• Bitdefender Antivirus
• Norton Antivirus
• McAfee Antivirus 
• Malwarebytes
• Spybot

All have some versions and editions for safe and sound computing. You need to use them correctly and regular update is a must for better safety. They also have free versions with limited features.