How to recover data after hard drive crash? Disk is consciously or unconsciously damaged that usually leads to crash and data loss. How to recover these data?

What is hard drive crash?
Hard drive crash, namely, hard drive damage which usually includes logical damaged and physical damage with the former one is soft damage.

Logical damage includes track servo information error, system information error and section logical error:
1. Track servo information error refers to servo information damaged or invalidation of some physical tracks that leads to logical track inaccessibility.
2. System information section error refers to system information section (a hard disk internal reserved section, including several parts that store lots of hard disk default parameters, setting information and internal control program) of hard disk fails to read some modules or to fails to check normally when performing power on self-check, resulting in hard disk could not enter preparatory mode.
3. Sector logical error refers to sector invalidation due to check error (ECC and CRC errors), sector mark error (IDNF error), address information error (AMNF error) and bad block mark, etc.

Physical damage includes head assembly damage, steering circuit damage, comprehensive damage and sector physical damage:
1. Head assembly damaged refers to damage to some part of hard disk head assembly that leads to irregular reading and writing of magnetic head. There are numerous types and causes for head assembly damage, mainly including dirty magnetic head, magnetic attrition, deformation of magnetic head bracket, magnetic coil damage and displacement, etc.
2. Steering circuit damage refers to line short circuit or disconnection of some hard disk electronic circuit board lines and electronic elements or IC chip damage that lead to hard disk failing to turn normally after electrifying or to seek track correctly after turning.
3. Comprehensive damage refers to various problems of hard disk triggered by subtle changes, including chip aging attributing to hard disk heat emitting or other causes; subtle change and displacement of shell, disk surface or motor spindle after vibration and designing defect of heat dissipation, friction and structure of hard disk. All these factors could lead to hard drive instability, data loss and logical errors like noisy, slow in reading and writing and failing to work occasionally.
4. Sector logical damage refers to physical damage crediting to crash, magnetic friction, etc. For example scratch or magnetic strip.

When hard disk crashes, part of files on disk are saved to recycle bin. User needs a data recovery software to recover crashed disk.
Diverse data recovery software existing on market, here MiniTool Power Data Recovery is recommended. MiniTool Power Data Recovery is a free software with powerful functions that integrates effectiveness, green and small size and supports different file systems like FAT12, FAT16, FAT32 and NTFS, etc.
Click MiniTool Power Data Recovery Download to download MiniTool Power Data Recovery:



Five modules are available after enter software:
- Undelete Recovery
- Damaged Partition Recovery
- Lost Partition Recovery
- Digital Media Recovery
- CD/DVD Recovery
Annotation would emerge when put the mouse pointer on each modules; the following is the interface of Damaged Partition Recovery module.



Click "Damaged Partition Recovery" to enter interface where disk partition is list and two buttons are available on the right:
- Open: user could directly open partition and search partition data when clicking this button with prerequisite that partition is intact or else this option is useless.
- Full Scan: when partition can't be accessed normally which suggests severe damage of disk, user could firstly employ Full Scan to determine the types of file according to remained file information and then to recover files.



Since disk is damaged, user should employ "Full Scan" to enter disk and then would come to above interface and subsequently find corresponding partition, then click "Show Files" to enter.



Thus, user could see file list on the partition with both deleted data and existing data, choose files to be recovered and click "Save Files" to save them.



Lastly, click "Browse..." and select desired files to have them saved, and then data recovery is finished.

• How to recover data after partition?
• How to recover data after fdisk?
• How to recover data after reinstalling windows?
• How to recover data after system restore?