(CNN) -- Microsoft issued two emergency Windows updates Monday to protect against "critical" and "important" vulnerabilities impacting Internet Explorer and Windows Defender, the anti-virus software.

Microsoft has published a pair of rare security updates off its normal update cycle. The two patches are to fix serious security flaws in Microsoft Defender and Internet Explorer. The updates are rare ...

It’s imperative to keep Microsoft Defender up to date even when Windows Update isn’t working. Here are several methods to manually update Defender. Microsoft Defender is the built-in anti-malware ...

Every Windows 11/10 machine comes with Microsoft Windows Defender Antivirus pre-installed. Windows Defender is a capable antimalware and antivirus software that offers real-time system protection and ...

Q: Are Windows Defender warnings that pop up with a phone number legit? A: Microsoft’s built-in security tool has improved over the years, and it still blocks plenty of everyday threats. But the ...

Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10. You can enable or disable Microsoft ...