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
You'll be notified immediately if any threats are found. To scan specific files or folders, right-click a file or folder, select Show more options, and then select Scan with Microsoft Defender. When …
Schedule a scan in Microsoft Defender Antivirus
Learn how to schedule a Windows Defender Antivirus scan at a time and frequency that you choose.
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.
Stay Protected With the Windows Security App - Microsoft Support
One of the key benefits of the Windows Security app is its ability to provide real-time protection. Microsoft Defender Antivirus continuously scans your device for potential threats and takes …
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.
Remove malware from your PC in Windows 8.1 or Windows 7
Windows Defender and Microsoft Security Essentials are powerful scanning tools that find and remove malware from your PC. Here's how to use Windows Defender in Windows 8.1 or …
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.
Antivirus and antimalware software: FAQ - Microsoft Support
What's the difference between a full scan and quick scan? A quick scan looks for viruses and other malware in all the places they are most likely to hide. It’s a good choice when you’re just …
如何在 Microsoft Defender 中開始掃描病毒或惡意代碼
如果您懷疑裝置可能有惡意代碼，您應該 Microsoft Defender 執行掃描。 以下說明如何在 Windows、Mac 或 Android 上執行此動作。