What is Hard Disk Recovery?

Hard disk data recovery is when the hard disk fails and the data cannot be read, or due to human operation errors and virus attacks, the hard disk partition or data is lost. Use special equipment or hard disk data recovery software and technical methods to recover the data from the hard disk. Service. ^[1]

Hard disk data recovery is when the hard disk fails and the data cannot be read, or due to human operation errors and virus attacks, the hard disk partition or data is lost. Use special equipment or hard disk data recovery software and technical methods to recover the data from the hard disk. Service. ^[1]

Introduction to Hard Drive Data Recovery Concept

Hard disk data recovery refers to the technology used to rescue and recover electronic data stored on desktop hard drives, notebook hard drives, server hard drives, and mobile hard drives.

Hard disk repair is only to restore the faulty hard disk to a normal operating state. During the repair process, no consideration is given to whether the data can be preserved. After the repair is completed, the data is not guaranteed to be complete. Usually, the hard disk repair requires a complete initialization of the hard disk. The hard disk data recovery is to read the data completely. Even if the hard disk is completely scrapped and cannot be repaired, the data can be recovered.

Hard disk data recovery common failures

Hard disk failures related to data recovery are generally divided into logical failures and physical failures as well as human damage and virus damage.

Hard disk data recovery logic failure

Logical failures are failures related to the file system. The hard disk data is written and read through the file system. If the disk file system is damaged, the computer cannot find the files and data on the hard disk. The components of the file system are.

1, Partition Table (Partition Table): If the partition table is damaged, then the disk partition or volume cannot be identified.

2. Boot sector or super block: The boot sector and super block define the most important parameters of the disk partition / volume.

3. Index and Meta data: The data and files on the hard disk are distributed on the disk according to a certain structure. If this structure is damaged, the complete file or data will no longer exist.

Hard disk data recovery physical failure

Physical failure refers to the hardware damage of the hard disk itself, which causes the hard disk to operate normally, identify or access data. Hard disks generally consist of electronic / software / mechanical components such as circuit boards, firmware, magnetic heads, platters, and motors, and any component may fail.

1. Circuit failure (PCB burned): The circuit board of the hard disk is burnt out, or the control chip on the circuit board of the hard disk is damaged. Because hard disk circuit boards use programmable chips, repairing hard disk circuit boards is not just a matter of "electric soldering iron" and "soldering". Special programming equipment is also required.

2. Firm corrupt: Firmware is the hardware program that controls the normal operation of the hard disk. It is the "brain" of the hard disk.

3. Head & motor failed: The head and motor are the mechanical components of the hard disk and are located inside the closed, dust-free disk body. The magnetic head will age and deform; the motor will burn out and get stuck. The damage of these two components will make the hard disk completely scrapped and cannot be repaired. Only special equipment can be used to recover the data.

4, platter scratch: platter is a carrier for storing data. During the use of the hard disk, bad sectors may be generated due to aging or scratches.

Related suggestions for hard drive data recovery

1. Be careful when using data recovery software. Choose the software that is suitable for your use and that is suitable for the situation. You cannot blindly use multiple software for multiple repeated operations.

2. Try to avoid hard disk read and write operations after data loss;

3. Data recovery does not guarantee 100% complete recovery. Therefore, some important files must be backed up. There are many cloud disks on the network. You can choose your favorite network disk to back up important files in case of accident. First, make frequent backups and don't worry about data loss.