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The physical damage to a hard drive could occur due to several mechanical failures such as failed motors or head crashes. The physical damage of a hard drive can always lead to some data loss and in many cases this can also results in damage to the logical structures of the file system. In fact, logical damages to a file system are more common than physical damage. This includes damages caused by power outages, which prevents file system structures from being completely written to the hard drive, system crashes, and problems with hardware (particularly RAID controllers).

Most physical damage to hard drives cannot be repaired by end users. For instance, opening a hard drive in a normal environment can cause dust to settle on the surface, resulting in further damage to the platters. Mind you, normal computer users may not have enough technical experience to make type of repairs. This is where hard drive data recovery companies play a major role in helping the end user to recover their valuable data from a damaged hard drive. Almost all these hard drive data recovery firms use Class 100 clean room facilities to protect your hard drive while repairing, and use the latest tools such as magnetometers to retrieve the lost bits from the magnetic media. The extracted raw bits retrieved from the damaged disk are used to rebuild a disk image, which can then be mounted to have its logical damage repaired.

Nowadays, there are several companies which offer hard drive data recovery software programs which help the end users to recover all their important files or folders lost after an accidental format, partition loss, software malfunction, file or directory deletion, or virus crash. Whether your computer crashes or you accidentally delete the files, hard drive data recovery software helps you to locate, recover and restore lost information from your disk.

Some of the main contexts where hard drive data recovery software could save one from the blues include a formatted drive, deleted file or directory, missing file or directory, drive not booting, inaccessible drive, support copying of system locked files like registry hives, damaged or corrupted partition table, recovery of deleted files and folders on FAT and NTFS hard drive or partitions, retrieve compressed files from NTFS partitions, data recovery on damaged FAT and NTFS partitions, and formatted hard drives.

Most of the hard drive data recovery software programs available in the market are easy to install and use and are virtually self maintaining.