Though, before bringing the drive to the mechanical shop or organization where the services are available, you have to have knowledge about what happened to your hard disk drive and what is the problem behind it. There are some points by which you can check or consult if you feel the need for a hard drive recovery process. 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. These external hard drives can be recovered, but it needs a very specialized and exhaustive job to recover the data lost. But still like other normal ways, external methods also involve the same process of saving the files that are not accessible. Prior to the external data recovery, the evaluation procedure is carried out. If there is no back up taken, then only a professional can help you recover the data from the hard drive In an urgent case, if you forgot to get the back up for your data, you really require an expert to the do the recovery for you and you have several, options for that, as there are number of laptop experts available nowadays who can assist to recover the files and data and also modify the damages caused to the hard drive. There are a lot of hard drive recovery services in market today which involve hard disk repair service, data recovery software service and still more. The time taken by the lost files to recover highly relies upon the type of service done. There are alleged standard, emergency hard drive and stimulated hard drive data recovery services. According to the specialists, the evaluation process that is held is quite crucial in recovering every data, as it is where the experts recovering the hard drive identify the appropriate problem. Thogh after the evaluation of the hard drive, the hard drive recovery experts will never go for the actual recovery operatiom without the approval from the customer to commence.