Getting started with Microsoft Defender
Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.
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.
Stay Protected With the Windows Security App - Microsoft Support
Learn about the Windows Security app and some of the most common tools you can use.
Virus and Threat Protection in the Windows Security App
Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.
Getting started with anti-malware in Microsoft Defender
If you're concerned and want to have Microsoft Defender run a scan right now, you can do that by going to the Device protection page from the Microsoft Defender dashboard.
Scan an item with Windows Security - Microsoft Support
To scan specific files or folders, right-click a file or folder, select Show more options, and then select Scan with Microsoft Defender. When the scan is complete, you'll see the Scan options page letting …
Firewall and Network Protection in the Windows Security App
Learn how to turn the Windows Firewall on or off using the Windows Security app.
Installing Microsoft Defender - Microsoft Support
Open the WDAV package file on your Mac and follow the installation steps. After installing, sign in with the personal Microsoft account (such as @outlook.com, @hotmail.com, or @live.com) that is …
Windows Security App Overview - Microsoft Support
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 your …
Automatically fix Windows security issues - Microsoft Support
Oct 14, 2025 · Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.