数据是可以恢复的（The data can be restored）.docVIP

数据是可以恢复的（The data can be restored） In reality, many people do not know, delete, format and other hard disk operations, lost data can be restored, that after deleting, formatting, the data will not exist. In fact, the simple operation after the data is still present in the hard disk data recovery principle of knowledge, know only a few people who can look back to the data will disappear, do not feel unbelievable, in the understanding of the principle of data storage in hard disk, USB flash drives, floppy disks and other media on the back, you can also do a magician himself. The first step in data storage and recovery -- partitioning The basic unit of hard disk data storage is the sector, which we can interpret as a page of a book. When we install a machine or buy a mobile hard disk, the first step is to facilitate the management of the partition. No matter what kind of partitioning tool, will partition the hard disk number, in the first sector of the hard disk label on each partition size, initial position information, the term called the main boot record (MBR), also known as the partition table. When the master boot record (for various reasons, hard disk virus, misoperation etc.) are destroyed, some or all of the partition will naturally missing, according to the data characteristics, we can calculate the partition size and position of the manual annotation to the partition information table, the missing partition back. Data storage and recovery second steps -- file allocation table In order to manage file storage, after the hard disk partition is complete, the next work is to format the partition. The formatter divides the partitions into directory files, allocation areas, and data areas, depending on the size of the partitions, just as we read novels, the first few pages are chapter directories, and the later ones are the real content. The file allocation table records the attributes, sizes, and locations of each file in the data allocation table. Our operation on