Windows Defender is almost useless without an internet connection

If Windows Defender is one of the best antiviruses on Microsoft’s operating system, it is subject to a major shortcoming: it must imperatively be connected to the Internet to ensure optimal protection. That’s according to a recent report from AV-Comparatives, which reveals that only 60% of threats are detected by Defender in offline mode, dropping it to the very bottom of the rankings.

Over time, Windows Defender has carved out a place for itself among best pc antivirus. Update after update, it has caught up with the big names in the industry, becoming the solution of choice for all users who do not want to opt for a paid antivirus. And truth be told, they don’t really need it. Indeed, several comparisons now place it at the top of the list of the best antiviruses on Windows.

But there is a catch. If the effectiveness of Windows Defender is undeniable, the antivirus only obtains these results on one condition: it must imperatively be connected to the Internet. Otherwise, there are many threats that can slip through the cracks. Thus, the latest report from AV-Comparatives is edifying. Without a connection, Windows Defender only detects 60.3% of threats.

Do not turn off the Internet if you are using Windows Defender

Worse still, the antivirus finds itself at the bottom of the ranking because of this result. Only Panda Free Antivirus and Trend Micro Internet Security are behind with a score of 40.6% and 36.1% each. On the podium, we find Bitdefender, VIPRE and Total Defense Essential Antivirus, with a maximum of 97.8% threats detected. Additionally, Windows Defender caused five false alerts during testing.

Related: Windows Defender — You’ll Soon Be Able to Take Control of Your PC’s Security on Android and iOS

On the other hand, Windows Defender regains its luster once the Internet connection is restored. It thus detects up to 98.8% of threats, without dominating the rest of its counterparts. Indeed, Avast and AVG do better with a respective detection rate of 99.5% and 99.98%. Behind, we find in particular McAfee (99.3%) or G Data (98.6%).

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