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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 remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.
Virus & threat protection in Windows Security helps you scan for threats on your device. You can also run different types of scans, see the results of your previous virus and threat scans, and get the latest protection offered by Microsoft Defender Antivirus.
Discusses how to remove viruses, spyware, rogue software, or malware using Microsoft Security Essentials, Microsoft Safety Scanner and Microsoft Defender Offline.
If you think your computer is infected, we recommend that you run the Microsoft Safety Scanner. The scan is free and will detect and remove many of the issues that customers frequently contact us about. To run the Microsoft Safety Scanner, visit the following Microsoft webpage: Microsoft Safety Scanner.
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 a daily basis, in case anything manages to elude the real-time protection.
Microsoft Defender Offline is a powerful offline scanning tool that runs from a trusted environment, without starting your operating system.
Scan an item with Windows Security. Windows Security (Windows Defender Security Center in previous versions of Windows) enables you to scan specific files and folders to make sure they're safe. You'll be notified immediately if any threats are found.
Windows Security continually scans for malware (malicious software), viruses, and security threats. In addition to this real-time protection, updates are downloaded automatically to help keep your device safe and protect it from threats.
Microsoft Defender Antivirus and Windows Firewall are on your device to help protect it from viruses and other malicious software. But if you think they've missed something run Microsoft Defender Offline which can sometimes detect malware that others scanners missed.