Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.

Windows Security, formerly known as Windows Defender Security Center, is an app built into Windows 10 or 11 that helps keep your PC more secure. It includes Microsoft Defender …

It includes features such as Microsoft Defender Antivirus, Windows Firewall, and Smart App Control, which work together to provide real-time protection against viruses, malware, and …

With features like Microsoft Defender Antivirus, Windows Firewall, and Smart App Control, you can easily access and configure robust security settings. Built into Windows, this app ensures …

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. Microsoft Defender will also run quick scans of your device on …

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Learn how to turn the Windows Firewall on or off using the Windows Security app.

Learn about the risks of allowing apps through Windows Firewall, and how to add or remove apps from the list of allowed apps.

Microsoft Defender Antivirus will detect the threat, block the download, and notify you, helping prevent data theft or system damage. It's on by default, reducing the need for an alternative …