K7 Ultimate Security adds features missing from the entry-level Windows suite and extends protection to macOS, Android, and iOS. Its low price may be attractive, but you’ll do better with a competitor whose components are consistently top-notch.
K7 Total Security includes all the features you’d expect in an entry-level security suite and then some, but the quality of those features ranges from excellent to poor.
Bitdefender Antivirus Free for Windows offers the same core antivirus technology found in the commercial Bitdefender Antivirus Plus, focusing on the essential task of antivirus protection with minimal add-ons.
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