Learn how to Turn ON or OFF Microsoft Defender Application Guard on Windows 11/10. It protects your system from malicious files.

Keep your devices safe from malware, phishing and other threats with the best antivirus software -- researched and ranked by our team of CNET experts.

When trying to pick out the best antivirus software package for you, there are some things you’ll need to sort out first. These include how much you’re willing to spend on malware protection ...