Quick tip: You can select all items using the Ctrl + A keyboard shortcut, pressing the Ctrl key and selecting the items you want to scan, or selecting the first item, pressing the Shift key, and selecting the last item you need to check. Select one or multiple items (as necessary). Quick tip: You can open File Explorer using the Windows key + E keyboard shortcut, clicking the icon from the taskbar, or querying the app from the Start menu. To perform a manual scan for a specific file or folder with Microsoft Defender, use these steps: How to scan a file or folder manually with Microsoft Defender using File Explorer
How to scan a file or folder manually with Microsoft Defender.In this Windows 10 guide, we'll walk you through the steps to scan a file or folder with Microsoft Defender Antivirus without the need for a full scan.