As there are lot of complication involved in the data recovery hard drive, but don't be too bold to do it yourself, as this may damage your data totally. Let the expert in this field of recovery do the task for you. Most of the experts now keep their work of recovering the data as primary task or business, by which they will recover the lost records thereby earn for their livelihood. 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. The simplest recovery is the one in which the recovering process is done externally to the USB, Firewire etc., in all of which the data is not accessible directly and not through normal manner. These external hard drives can be recovered, but it needs a very specialized and exhaustive job to recover the data lost. 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. Another solution that IBM delivers is SIGuardian. The IBM hard drive recovery actually categorized as disk utility which keeps track of the status of the hard drive to assist you to prevent the loss of data. The IBM recovery software utilize the wise technology that is involved in all modern hard disks, which enables the hard drive recovery to evaluate and calculate the time-span that your hard drive will end in Threshold Exceeded Condition (TEC). Hard drive recovery of the file is nothing but reconstructing the data that is lost. The data will be constructed again through the recovery of hard disk drive, no matter whether the files were erased or are not accessible due to rammed hard drive. Some cases are there where hard disk drive is not accessible because of the ramifications on the hardware.