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Antivirus is a software that is used to identify viruses and remove them safely. A virus is a program that does great harm to our privacy and our security. The virus usually attacks important files and either deletes them or makes them unusable.

In worst case, the device infected by the virus crashes. Therefore, we always try to use the best antivirus program. The performance of an antivirus is determined by its ability to protect against all kinds of threats. You can check whether your antivirus is working as it should using the simple trick in the video.