A hard drive failure is an event dreaded by all computer users. Within seconds, data collected and processed over several months and years may be lost. With computers being utilized in more and more avenues, data recovery has almost become a norm.
A hard drive may crash due to several reasons. These are classified into two main categories, logical and physical. The logical failures refer to faults in the file system, software or a virus attack. Physical crashes are due to voltage fluctuations, strong magnetic fields around the computer or a heavy impact.
Today, using state-of-the-art technologies, it is possible to recover almost 80% of the lost data. Hard drive recovery is best performed by experts and firms dealing with such work, as it is a tedious process. A combination of both software and hardware are required to perform the recovery task effectively.
A working computer, preinstalled with all the necessary software, is a must for any recovery process. The damaged hard drive can be tested on this machine to determine the actual fault. In case of logical failure, several disk utility tools are available. These softwares scan the hard drive for any errors or bad sectors that might have been created due to faulty software. Anti-virus programs are also commonly used to detect the presence of a malicious virus attack. Platforms such as Windows, Macintosh and Linux have their own individual disk utilities and so almost all systems can be successfully recovered. File systems such as NTFS, ext3 and xfs reduce the risk of logical damage.
Sunday, December 31, 2006
Saturday, December 30, 2006
Hard Drive Recovery Utilities
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.
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.
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