The on-demand scanner, also known as a manual scanner, will not protect the computer in real-time, but can help find malware in selected locations on the local hard-drives. Some antivirus programs call this feature a resident shield, auto-protection, on-access scanning or a background guard. Real-time scanning will help protect your files and the system by monitoring the activity in the background and will automatically quarantine or remove any detected threats. Most antivirus programs will provide real-time scanning against malware in addition to manual scans that the user can run themselves. Malware can interfere with the media creation process if it’s running in the background, so if you’re concerned your current PC might be infected, use another PC to download Microsoft Defender Offline and create the media.Microsoft Safety Scanner - A Free Disposable Virus Scanner for Windows PC Microsoft recommends creating bootable media on a known-clean computer. This works identically to the Microsoft Defender Offline feature on Windows 10, but requires you create the bootable media and boot it up yourself. Restart your computer and boot from the offline scanner.įor previous versions of Windows, you can download Microsoft Defender Offline, create a bootable USB drive, CD, or DVD, and boot the Microsoft Defender Offline tool on the PC.Run the executable and create your bootable media (a USB drive or CD/DVD).Go to Microsoft website and download the offline scanner.RELATED: How Do I Know if I'm Running 32-bit or 64-bit Windows? How to Run Microsoft Defender Offline on Windows 7 and 8.1 If no malware is found, your computer will automatically boot back into Windows once the scan is complete.
The scan may take up to fifteen minutes. If any malware is found, you’ll be prompted to clean it up from within the Microsoft Defender Offline interface. RELATED: What's the Best Antivirus for Windows 10 and 11? (Is Microsoft Defender Good Enough?)Īfter you click this button, your computer will automatically reboot and begin scanning your PC for malware. Select “Microsoft Defender Offline scan” to choose an offline scan.
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