In such a condition, you really require a specialist who can repair the hard drive for you and it has been found that the hard drive recovery done is highly expensive. Moreover it's a little tricky especially for people who are not skillful to the procedures of hard drive recovery. If you have made a constant back up of your essential information or data present in the hard drive, then it's quite assured that you need not worry about hard drive recovery. According to the file recovery specialists the measure of data can be in large volumes. Most of the companies and organizations which go through the disaster are usually confronted with more than one failure or more. This also occurs to most of the companies who handle the retrieving of their data, taking back up of data on a routine manner. The units of laptop are hypersensitive to the dust and moisture, so any trial to open the laptop shall be made only inn the room which is specially made and authorized for it, as it needs to be clean. Getting into these trouble, you may now realize that you need to take a back up for all your files and folders at least once in a week ,so as to be safe and secured but back up of data can only be done only to the media which is portable and platform independent and on the internetworking. Another important part to note is that though the circuitry board develops errors which attacks the operations of the hard disk, recovery of hard drive is still possible .You need to know the fact that before deal with any hard disk drive recovery process, if there are peculiar noises or no noise the reason for its failure may be considered as mechanical. If you have ever been in a position that you were working urgently in a project and the computer suddenly shut down by itself. You will then try to reboot the computer, then it will display the message that no hard drive found. Then only you will get to know that the problem is with hard drive and you need to retrieve the data as soon as possible. You cannot find a hard drive recovery service of free charge, as at least they will be charging a minimal amount, for the knowledge they have acquired. Though there will be chance if getting a free software download there are restrictions to this free download service also. Some of the important tools are not available in it, especially to retrieve eth lost data.