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.
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 …
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.
Getting started with Microsoft Defender
Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.
Schedule a scan in Microsoft Defender Antivirus
Learn how to schedule a Windows Defender Antivirus scan at a time and frequency that you choose.
Installing Microsoft Defender - Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
Remove malware from your PC in Windows 8.1 or Windows 7
Learn how to remove malware from your PC by using Windows Defender in Windows 8.1 or Microsoft Security Essentials in Windows 7.
Troubleshoot problems with detecting and removing malware
Solve problems with detecting and removing malware with Windows Security, including incomplete scans, detection errors, and persistent malware.