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.

When surfing the Internet via a browser, you may see an error stating that your computer is locked and that you must contact Microsoft to resolve the issue. If you ...

Why it matters: Microsoft has released a crucial bug-fixing update to its Windows Defender antimalware application. Its arrival means that some unlucky Firefox users should now get a much smoother and ...

Microsoft this week announced that its Microsoft Defender Vulnerability Management solution can now scan Windows devices that are lacking certain agent support. This capability, called "authenticated ...

A Dec. 12 posting to Microsoft’s security update guide has confirmed that a Windows Defender vulnerability, rated as critical according to Microsoft itself, could have enabled an attacker who ...