Data recovery, how does it work?
Data recovery is the reconstruction of data that is on a crashed hard drive. There are software programs on the market that you can try to retrieve data from a disk, called software recovery programs. For this it is necessary that the mechanical hard disk still functioneerd. Has a real hard drive crash and it runs no more than you are at the mercy of hard disk recovery companies.
How does one actually drive?
The hard disk of a computer consists of a round or more hard disks, this disk is a very thin layer can be applied which magnetized, these discs are in a sealed enclosure. Each disk is divided into smaller parts being the sectors. On either side of the disk is a read / write head which is very fast about the rapidly spinning hard drive can move data and sector can make or read the disk. The disk rotates more than 10,000 revolutions per minute, the read / write head is located only a few microns of the disk, the head drive will not touch the high speed does an air layer, the head of the disk, as at a hoovercraft. At the closing of a hard disk drive will stop spinning, now it will air layer between the head and drive away to avoid the head on the disk folds this into so-called landing ring put, this is an unused ring hard drive.
How can a mechanical hard drive will crash?
It is not hard to imagine, if you know the disks with more than 10,000 rpm spin above and below the disk read / write head to a few microns away, then you can imagine what happens when during a working with the computer plug in once from it, or leave your laptop on the floor, then the thunder heads on the disk and wipe off all the magnetic data or even damage the drive. This is a mechanical crash, this is basically worse than a software crash, those with special software can still be overcome. In a crash, mechanical repair much more expensive and difficult.
Create a software hard drive crash, and now?
In principle, all entered data on a hard disk, if they do not actually overwritten. There is software available which can find those dates. In this way, lost photos or data files never lost even when an image file is not completely dispose of the hard disk. By then the right data recovery software you can use these files always terughalen.Voorbeeld such a program is Filescavenger.
Mechanical hard disk crash, and now?
Can you hear the hard drive was humming with activated computer, you get a report of unreadable disk? then you are worse off. Then you hard disk over to Hard disk recovery service companies called Biggest disadvantage is the price, think of an average price of around 900, - a hard drive. This data recovery companies have in fact very expensive techniques to data from a hard drive to get, first they must have a special dust-free area where they cover the hard drive to open, then they'll sector after sector of the damaged disc manually try to clone, so as to another hard disk to reproduce the data. With today's hard drives of large terra bites you can imagine that this is a very intensive job is hence the price.
Can you avoid a crash?
No, actually not all that long time hard around turns and in one way or another mechanical nich works will once fail, you can still prevent your data recovery need, make regular backups of your important files, this can often with software on your computer, some antivirus programs offer this option already, or create a clone of your hard disk to an external hard drive and set it aside. Treat your PC and drive carefully and check the proper functioning of the operating system offered by the utilities.
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