Introduction to NTFS's advanced features The

NTFS is an advanced file system with several improvements to FAT and HPFS (High Performance File System), providing long file names, data protection and recovery, and security through directory and file permissions. Files on NTFS partitions are not directly accessible from DOS or other operating systems. But in Windows 2000 and Windows XP, NTFS can also provide advanced features such as file and folder permissions, encryption, disk quotas and compression. Today, we will introduce you to these advanced features in detail.
1. Encrypt files or files Folder
Step 1: Open Windows Explorer.
Step 2: Right-click on the file or folder you want to encrypt and click “Properties”.
Step 3: On the "General" tab, click “Advanced”. Check the "Encrypt content to protect data" checkbox.
Also note the following five points during the encryption process:
1. To open "Windows Explorer", click “Start &rarr ; program → attachments & rdquo;, then click & ldquo; Windows Explorer & rdquo;.
2. Only files and folders on the NTFS partition volume can be encrypted. The files and folders on the FAT partition volume are invalid.
3. The compressed file or folder can also be encrypted. If you want to encrypt a compressed file or folder, the file or folder will be uncompressed.
4. Files marked as “system" attributes cannot be encrypted, and files located in the systemroot directory structure cannot be encrypted.
5. When encrypting a folder, the system will ask if you want to encrypt its subfolders at the same time. If you select Yes, its subfolders will also be encrypted, and all subsequent files and subfolders added to the folder will be automatically encrypted when added.
Second, decrypt the file or folder
Step 1: Open Windows Explorer.
Step 2: Right-click on the encrypted file or folder and click on <;Properties”.
Step 3: On the "General" tab, click “Advanced”.
Step 4: Clear the "Encrypt content to protect data" checkbox.
Similarly, we should pay attention to the following issues during the process of decryption: 1. To open "Windows Explorer", click "Start → Programs & Rarr; Attachments", then click “ Windows Resource Manager”.
2. When decrypting a folder, the system will ask if you want to decrypt all files and subfolders in the folder at the same time. If you choose to decrypt only the folder, the encrypted files and subfolders in the folder you want to decrypt remain encrypted. However, new files and folders created within the decrypted folder will not be automatically encrypted.
The above is the method of using file encryption and decryption! In the process of using, we may encounter the following problems, here are the following instructions: 1. Advanced button can not be used Cause: Encrypted file system (EFS) can only handle Files and folders on NTFS file system volumes. If the file or folder you are trying to encrypt is on a FAT or FAT32 volume, the advanced button does not appear in the properties of the file or folder.