OtraUnit Data Recovery

OtraUnit Data Recovery is a professional data recovery software for windows, recovering data from formatted, deleted and damaged partition attributing to hard drive corruption, virus infection, unexpected system shutdowm or software failure and supporting IDE, SATA, SCSI, USB hard disk, memory card, USB flash drive, iPod, iPhone, iPad.

How to recover data after hard drive crash?

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 OtraUnit Data Recovery is recommended. OtraUnit 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 OtraUnit Data Recovery Download to download OtraUnit Data Recovery:
Five recovery modules are available after enter software:
- Fast Scan
- Full Scan
- Volume Deep Scan
- Disk Deep Scan
- Partition Recovery

Annotation would emerge when put the mouse pointer on each modules; the following is the interface of Full Scan module.
Choose G partition and click Scan button.
Choose files to be recovered in this interface and then click "Save Files".Recovery completes when prompt of successful saving pops up. Thus, data of damaged partition is recovered.