The service provider will offer data recovery service and the process is called data remnants which mean that even though the data is not fully accessible, some of them can be retrieved. In order to recover the data which is affected you need to recover the partitions .As people are into the recovery process of hard drive ,more companies are providing their own service and many companies have started to design and develop their own programs to recover the hard drive. They will be able to rectify small day to day alterations, but in extreme recovery situations, the programs that are called utilities may cause further damage .The worse condition is that, many software that are not effective will even make the recoverable data not available. So try to choose the right software, otherwise it may harm your hard drive. 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. All these software recovery tools were designed as wee;; as created to assist you in recovering the files lost and even they will help you in getting back your hard drive as it was before. You will be very happy to note that there is number of software solutions offered, out of which you can yourself select some of them according to your needs. File scavenger This is the software solution for hard drive recovery purpose which is noteworthy as well as potent and works well for the PC which executes Windows as operating system. The system is able to recover the lost data even if the hard drive partition is failed or the drive's accessibility is not distinguished by Windows . Data Recovery for the FAT file system If you have FAT as the file system, and looking for the hard drive data recovery from this file system, then there are several efficient FAT recovery programs which are most effective and will help to restore the data that is missing from about 1000 of such file system Everybody should have the basic knowledge of what FAT is and why we need to recover from the file system.