Hard drive is a high volume, disk storage device holding a high density, fixed and rigid data. It is sealed in order to protect enclosed components that contain a computer’s most important data. Once it is installed in your system, it is unconventional to remove hence hard drives are also called as fixed drives. Hard drives are differ from floppy disk with respect to storage capacity, accessing speed and design i.e. they have larger storage capacities, provides greater speed for accessing data and are more complex in design. Generally, hard drive has one or more circuit boards that are connected to exterior part of hard drive assembly. These circuit boards helps to regulate a hard drive’s internal circuitry, spindle movement, drive controller and head actuator systems. Sometimes, hard drives may fail as a result of mechanical problems. Now, the question arises such as how to recover data from hard drive? Recovering data from hard drive that has been failed due to mechanical problem is very difficult. In few cases, data stored on hard drive becomes inaccessible as a result of logical problems. In such case, you can easily recover lost data from hard drive by using relevant data recovery tool.
Logical corruption is primarily caused by power surge, which does not allow the file system structures from being completely written to hard drive. The result is that file system is left in an inconsistent state that leads to variety of problems like system crashes, loss of data etc. These inconsistencies can be corrected by using third party recovery software. Most of the Operating System comes with an in-built repair tool for their native file system. Windows Operating System supports FAT and NTFS file systems and it has inbuilt repair tool called as CHKDSK. This tool checks for any inconsistency in file system i.e. it scans the logical structure of hard drive and checks to make sure that it is consistent with its specification. For example, directories in file system must have 2 entries i.e. a dot(.) entry and another one is dot-dot(..) entry. Dot entry points to itself and dot-dot entry points to its parent. CHKDSK reads each directory and checks whether entries exist and point to the correct directories or not. If they are not pointing correctly then the error message is displayed and problem is corrected.
The major disadvantage of CHKDSK is it cannot repair severely corrupted file systems. While repairing the file system, if it finds any data file that is not recognizable then it may delete that file without asking that may cause further data loss. Therefore, always take backup. Make use of relevant recovery tool.
Remo Recover (Windows) Pro Edition is an effective recovery tool that helps to recover data from severely corrupted file systems. This software can recover data from FAT16, FAT32, NTFS, NTFS5 and ExFAT formatted partitions. This software can also recover data from accidentally formatted or reformatted hard drives. SATA, SCSI and IDE are the different types of hard drives supported by this software. Download free demo version to estimate recovery results.