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Antivirus software is an essential layer of defense for ALL computer systems. It acts as a safeguard against malicious software, such as viruses, worms, trojans, and ransomware, that can compromise a computer’s security, functionality, and data. 

While Windows 10/11 and MacOS have default built in security features, ALL operating systems are vulnerable to various cyber threats, making antivirus protection a necessity rather than an option. Below you will find 2 options for free antivirus software that work on MacOS and Windows, as well as instructions for enabling Windows Defender.

Orange circle with 4 lines Avast Antivirus: Avast offers robust antivirus protection alongside features like Wi-Fi security scanning and password management. Yet, some users find its pop-up ads promoting the premium version intrusive.


4 colorful squares with AVG underneath AVG Antivirus: AVG offers decent malware detection and a user-friendly interface. However, the free version is ad-supported, and there have been concerns about the privacy implications of its data collection practices.

If you have any questions about computer security don’t hesitate to email the Service Desk at ITService@lclark.edu.