A hard drive is one of the most important parts of any computer. The drive physically stores data on magnetic disks. Since the hard drive has constantly moving parts, it is susceptible to wear and tear. This causes hard drive failures, which result in loss of important data.
Hard drive failure can be attributed to power fluctuations and physical damage or to internal file systems and software problems. The former is known as physical damage, while the latter is called logical failure. Both these cases can be resolved to recover the stored data. While the user can rectify logical problems at home, physical malfunctions almost always require expert help.
There are several software utilities available to help in hard drive recovery. Logical hard drive recovery can be of various different types. The basic problems include bad file sectors resulting from pirated software or due to virus attacks. Hard drive recovery softwares also prove beneficial for recovering lost files or folders due to accidental formats, partition losses, emptying the recycle bin and general software malfunctions.
Hard drive recovery utilities first scan the hard drive to detect the nature of the problem. Once the problem is analyzed, the software can be configured to take the necessary action. Some of the powerful softwares can even be used to extract data from compressed and inaccessible drives. Backup of the recovered data is taken onto a desired medium such as an external hard drive or CD/DVD media. Hard drive recovery is possible because the data continues to exist on the hard disk even after it is deleted. Unless data is overwritten in the same sector, the data will continue to exist even if the operating system does not show it.
As these data recovery utilities are mostly used in business organizations, they tend to be very expensive, often running into several thousand dollars. Most of these programs are easy to install and can be scheduled for self-maintenance such as taking a periodic backup of important files.
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