On Windows 11, you can use the Microsoft Defender Antivirus to scan individual files and folders to make sure they are not infected, and I'll show you four methods.

Here are the basics: Microsoft Defender is the virus protection integrated into Windows by default. If no other antivirus program is installed and activated, Defender protects you against viruses.

Do you really need to use antivirus software on your Windows 11 computer? ... we found its malware protection to be good, with four scanning options including a quick scan and a custom scan option.

How to scan files manually with Microsoft Defender from File Explorer. To do a manual scan for a specific file or folder with the Microsoft Defender Antivirus on Windows 11, use these steps: ...