The security intelligence update version of the Microsoft Safety Scanner matches the version described in this web page.
Microsoft Safety Scanner only scans when manually triggered. Safety Scanner expires 10 days after being downloaded. To rerun a scan with the latest anti-malware definitions, download and run Safety Scanner again. We recommend that you always download the latest version of this tool before each scan.
Safety Scanner is a portable executable and does not appear in the Windows Start menu or as an icon on the desktop. Note where you saved this download.
This tool does not replace your antimalware product. For real-time protection with automatic updates, use Microsoft Defender Antivirus on Windows 11, Windows 10, and Windows 8 or Microsoft Security Essentials on Windows 7. These antimalware products also provide powerful malware removal capabilities. If you are having difficulties removing malware with these products, you can refer to us.