When comparing Kaspersky Free vs Ad-Aware Free Antivirus+, the Slant community recommends Kaspersky Free for most people. In the question“What are the best free anti-viruses for Windows?” Kaspersky Free is ranked 5th while Ad-Aware Free Antivirus+ is ranked 8th.
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Pros
Pro Top rated in comparisons
Pro Will watch over email and web sites
Pro Not the lightest on resources, but not the worst either
Pro Can set preferences about how to deal with PUP's and other notifications: ask, quarantine, or exclude
Pro Easy to use
Ad Aware Free Antivirus+ has a clean, well designed user interface that's easy to use for anyone. It features a game mode, so that you're not disturbed by any kind of notification or not have your computer's performance weighed down by background scans while gaming.
Pro Real-time protection
This is one of the few good free antivirus solutions that offer real-time protection, stopping malicious processes on your computer at any given time. Ad-Aware Free Antivirus+ also scans downloads for malware.
Pro Solid spyware and virus detection rates
Ad-Aware is a well known veteran in battle against adware and spyware and today still counts as a solid piece of security software on that matter. For virus protection, it gets similar scores as the most trusted paid antivirus solutions without having many false positives.
Cons
Con Russian company
Russian company. Banned by British and U.S. government for collecting and sharing data with Russian government.