Microsoft Defender - Free download and install on Windows
Get this app while signed in to your Microsoft account and install on up to ten Windows devices.
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 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 …
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 can I get the Defender app without having to pay a …
Feb 5, 2024 · Microsoft Defender is a free antivirus software that comes pre-installed with Windows 10. However, Microsoft has recently introduced a paid version of the software called …
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.
Getting started with anti-malware in Microsoft Defender
Microsoft Defender can help protect your entire family's Windows, Android, and Mac devices from malicious apps and other malware.