Data Recovery recovers the data that from the storage media especially when the media is not able to access the file in normal way. Data in such situations can be recovered from hard disks, USB drives, MMC cards, RAID drives etc. The data loss can be due to physical damage or because of accidental deletion of the files.
In physical damage the physical parts of the drive are not working. It can be head crash, motor failure etc. Because of this the data cannot be accessed. And this error cannot be repaired by a layman it has to be given to be repaired by a professional. In this the physical damage is first repaired and then the process for recovering the files is started.
For recovering the data the file recovery software is used. This software is specialized to recover the deleted files from the physical media. You can recover any kind of file from it. But you need to take care of one thing that after the deletion of the file you should not add any new file to the media as it can be over written on the deleted file making it irrecoverable. You can undelete all the deleted files if the above criterion is taken care of. Else the deleted file recovery will not be 100% as some files will be recovered.
