A: Windows Defender Antivirus (known simply as Windows Defender in the past) is a fully capable means of antivirus protection for Windows PCs. Is it a replacement for other free versions of threat ...

Here are the basics: Microsoft Defender is the virus protection integrated into Windows by default. If no other antivirus program is installed and activated, Defender protects you against viruses. You ...

Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested. Our team tests, rates, and ...

Windows' built-in security software just doesn't keep you as safe as the best antivirus. We examine the need for third-party protection in this week’s edition of SecurityWatch. I review privacy tools ...

Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.

In 2025, most devices feature built-in antivirus software that scans files you attempt to download, blocking anything it deems suspicious. Antivirus tools also perform automated scans to remove ...

Windows Defender, now known as Microsoft Defender Antivirus, has significantly improved over the years, making it a robust built-in security solution for Windows users. However, the question remains ...

If you’re new to using a computer or new to Microsoft, or on the flip side, very, very experienced you might be thinking: Do I really need an antivirus program for my Windows 11 computer? The short ...

The Microsoft Defender antivirus product built into Windows 10 and 11 is generally good enough at detecting and removing malware that most people don’t need to pay for a separate antivirus product.