Книга: Windows Server 2012 R2 Storage, Security, & Networking Pocket Consultant

Working with encrypted files and folders

Working with encrypted files and folders

Previously, I said you can copy, move, and rename encrypted files and folders just like any other files. This is true, but I qualified this by saying “in most cases.” When you work with encrypted files, you’ll have few problems as long as you work with NTFS volumes on the same computer. When you work with other file systems or other computers, you might run into problems. Two of the most common scenarios are the following:

? Copying between volumes on the same computer When you copy or move an encrypted file or folder from one NTFS volume to another NTFS volume on the same computer, the files remain encrypted. However, if you copy or move encrypted files to a FAT volume, the files are decrypted before transfer and then transferred as standard files, and therefore end up in their destination as unencrypted files. FAT doesn’t support encryption.

? Copying between volumes on a different computer When you copy or move an encrypted file or folder from one NTFS volume to another NTFS volume on a different computer, the files remain encrypted as long as the destination computer allows you to encrypt files and the remote computer is trusted for delegation. Otherwise, the files are decrypted and then transferred as standard files. The same is true when you copy or move encrypted files to a FAT volume on another computer. FAT doesn’t support encryption.

After you transfer a sensitive file that has been encrypted, you might want to confirm that the encryption is still applied. Press and hold or right-click the file, and then select Properties. On the General tab of the Properties dialog box, tap or click Advanced. The Encrypt Contents To Secure Data option should be selected.

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