Encrypting File System (EFS) is a feature in Microsoft Windows that allows users to encrypt individual files and folders on NTFS file systems. This protects data confidentiality by converting the file data into a format that only the authorized users can read. Encrypting data at the file level helps in securing sensitive information stored on the computer.
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What is NTFS and why is it important for EFS?
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How does EFS handle encryption keys?
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Can EFS be used with files on non-NTFS file systems?