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Microsoft told us that this was because its Smart Screen browser-protection feature flags any unknown file as potential malware, and that AV-Comparatives chalked up a false positive every time that happened.
Kaspersky got zero false positives for the entire year Bitdefender got four and Avast and AVG 13 each. Tests by the Austrian lab AV-Comparatives are much more sensitive to false positives, and in those, Windows Defender racked up too many: a total of 74 in four monthly tests from February to May 2019, and 58 from July through October 2019. Still, Kaspersky had only three false positives over the entire two years. It registered 21 false alarms in 2018, but only 15 in 2019. Windows Defender is also detecting fewer false positives than it used to, at least in AV-Test's evaluations. While they detected either 99.9% or 100% of widespread malware almost all the time, they missed zero-day bugs 10 times over the 26-month period. The other two free products we've reviewed for this round, Avast Free Antivirus and AVG AntiVirus Free, share the same malware-detection engine with each other and were behind Windows Defender. Next up is Bitdefender, which got all the widespread malware in those two-plus years but missed some zero-day bugs in three instances. Not all these brands mentioned offer free antivirus software, but of those who do, Kaspersky comes out on top with perfect scores. Those scores put Windows Defender, once the worst joke in antivirus protection, ahead of well-known brands like Avast, AVG, Avira and McAfee, and just behind Bitdefender and Trend Micro.ĭefender still isn't as good as industry leaders Kaspersky or Norton, which detected all malware in all of AV-Test's 2018, 2019 and (so far) 2020 evaluations, but it's finally within shouting distance. Many users will not even notice that Defender is working until they're subjected to an attack.
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Windows Defender: Antivirus protectionĮven if you do nothing to a new Windows 8.1 or 10 computer, Windows Defender is already there protecting your machine. Hence the official renaming of the enterprise product to "Microsoft Defender." Microsoft tells us the consumer product will continue to be called Windows Defender Antivirus.
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There's already a beta version of Microsoft Defender for Macs in enterprise deployments, and Microsoft says it is working on Microsoft Defender for Android and Linux. Microsoft plans to expand Defender's coverage to other platforms. On the other hand, it still lacks things that third-party antivirus makers add as enticements, such as a file shredder and VPN access.
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But if you take into account the entire Windows Security apparatus, Defender comes with a firewall, drive-level encryption (in Windows 10 Pro and up), limited parental controls and even a game mode. There are no upgrades available to augment protection or add features. What you see with Windows Defender is what you get. Windows Defender comes with Windows 8.1 and 10 and can be disabled only by the installation of a third-party antivirus program, or, if you're brave, editing the Windows Registry.
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Available in US and WE only.Windows Defender: What's covered and upgrade options
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PCs that have been running previous versions of Windows must do a full reset of the Windows 11 operating system for the feature to work. In order to keep you as safe as possible, you must start with a fresh system. Only available on the latest version of Windows 11. Location permissions must be active driving safety available only in the US, UK, Australia and Canada Microsoft 365 Family subscription required for location alerts and drive safety features. Requires Microsoft account.Īpp available as separate download for free. File versions created up to 30 days in the past can be restored at any time for any reason. OneDrive files are restored to the state they were in before the attack occurred. Must be signed into a Microsoft account.įiles may be made available for offline use. PIN, facial and fingerprint recognition require Windows Hello to be set up.Īvailable on the latest version of Microsoft Edge. Learn more at Windows 11 Specs and System Requirements.įor supported devices with latest security updates installed.įacial and fingerprint recognition work with devices equipped with the correct sensors. Features and app availability may vary by region.
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