Oct 22, 2018 · How does antivirus work? Antivirus software has changed a lot over the years. While the earliest iterations of it were bespoke programs designed to specifically target individual viruses, today

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Avast Antivirus comes with several pre-defined scans as well as the option to create your own custom scans. Generally, running a scan does not noticeably affect system performance. However, performance may be affected somewhat depending on your system configurations, especially if you execute multiple scans simultaneously.

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Avast Antivirus comes with several pre-defined scans as well as the option to create your own custom scans. Generally, running a scan does not noticeably affect system performance. However, performance may be affected somewhat depending on your system configurations, especially if you execute multiple scans simultaneously. Bitdefender Antivirus Free - Download Free Antivirus Software