PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing. Microsoft Defender, the antivirus app that comes ...

Security Intelligence Updates for Microsoft Defender Antivirus are automatically installed with the Windows Updates on your PC. Microsoft installs it as a security patch and there is no way you can ...

Some PC users have reported cases whereby the Security Intelligence Update for Microsoft Defender Antivirus fails to work on their Windows 11 or Windows 10 computer and in Windows Security app. Under ...

Microsoft Windows Defender is the default security feature on every Windows 11 PC. It’s one of the OS’s most useful features because it works continuously in the background to detect and prevent ...

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 ...