Microsoft Defender - Free download and install on Windows
On your PC, Microsoft Defender works with built-in Windows Security to provide additional device antivirus protection on your Android, iOS, and MacOS devices. Keep your identity and credit …
Installing Microsoft Defender
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Microsoft Defender for Individuals | Microsoft 365
Use Microsoft Defender for individuals as your personal defense against online threats and easily manage your family’s online security.
Protect my PC from viruses - Microsoft Support
Microsoft Defender is free anti-malware software included with Windows, and it's kept updated automatically through Windows Update. There are also anti-malware products made by other …
Windows Security: Defender Antivirus, SmartScreen, and More
Protect your privacy, identity, and devices with Windows Security. Explore Windows 11 security features like Microsoft Defender Antivirus that help keep you and your PC safe.
How to start a scan for viruses or malware in Microsoft Defender
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.
Microsoft Defender Antivirus in Windows Overview
Oct 20, 2025 · Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in antimalware and antivirus protection.
how to install windows defender - Microsoft Q&A
Jun 17, 2025 · Microsoft Defender Antivirus in the Windows Security app - Microsoft Defender for Endpoint With Microsoft Defender Antivirus now included in the Windows Security app, you …
Training for Defender | Microsoft Learn
Continue your learning journey with Microsoft Virtual Training Days that provide free, instructor-led, technical skilling in multiple languages and time zones across a variety of topics.
Microsoft Security Free Trial | Microsoft Security
Try enterprise-grade security solutions from Microsoft Security to protect your people, data, and infrastructure. Start a free Microsoft Security trial today.