Data recovery is a procedure in which the data that has been lost or corrupted can be retrieved from your hard disk or any other storage devices. There are many soft wares which can be used for data recovery. These soft wares are very easy to install and to use. They are available for free and some high quality soft wares are available which can recovery data after the formatting the disk also. But, those soft wares are a bit costlier when compared with normal soft wares. Then there are the hard disk or hard drive recovery services which can recover data from every type of hard disk. 

The hard disk formats are of different types depending on the operating system that you use. Like a windows operating system uses FAT16, FAT32 and NTFS formats. These formats are completely differed from Linux formats like UFS. The partition tables and the way the data is stored in the hard disk is completely different so, software which is capable of extracting data from a NTFS format cannot extract data from UFS. So, the user has to be aware about the operating system he is using and should be aware of the formats supported by the software. Though, most of the latest soft wares can recover data after reformatting the disk also but, the best approach is handle the work to any hard disk recovery service. They will recover all your data from every hard disk irrespective, of operating system and partitions.