Have you ever in such situation like lost precious photos when format your particular disk? Or you annoyed with deleting important folder accidently, or can not find you document and so on. There is to solve all these problems which so called as file recovery.

File recovery is retrieval of a deleted or damaged computer file. Modern operating systems do not automatically eradicate a deleted file but prompt for the user’s confirmation. Files so deleted may still be recoverable by some utility programs if the space occupied by the deleted file has not been occupied (overwritten) by another file. A damaged file can only be recovered if its data is not corrupted beyond a minimal degree. Recovery of data where the media itself has been damaged requires highly specialized equipment and techniques offered exclusively by data recovery service firms.

File recovery is different from file restoration where a backup file stored in a compressed (encoded) form is restored to its usable (decoded) form.

In a certain sense, file recovery is similar with data recovery. Hence, file recovery also has been divided two types like data recovery, one is logical data recovery, and the other is physical data recovery.

When hard drives have been in a flood or failed caused by failed motor or other mechanical issues, are called physically damaged. Usually physically damaged is needed the professional data recovery services.

On the other hand, there are many reasons of logical damage such as computer crashes, surges, failing hardware, power outages and unexpected shutdowns and so on. When logical damage happens, file of storage device system becomes incompatible. For instance, during an unexpected shutdown, the specific file’s information would normally get updated to the master file allocation tables does not get written. So, when you try to find the file, it is gone. It looks like if the file has disappeared.

In the most common file systems are various versions of FAT and NTFS. While each has its details, file systems make data recovery possible. File systems create a master catalog or index of all of the files and folders on your computer which is accessed by the operating system and diverse programs to rapidly and efficiently recover files. This index points to the location of the file on the hard drive so that the program or operating system knows exactly where to look to pull up the file. Without such a system, your computer would take forever to pull up files.

When the file system’s master index or allocation table no longer has the information about a file’s whereabouts, you will no longer see the file thru traditional ways. For example, if you were to look for a file in Windows Explorer, the file would be disappeared. If you were to follow an existing shortcut to the file, the shortcut wouldn’t work. But, this does not mean that the file is no longer on your hard drive or storage device though. Actually, the file could very well be exactly where it was, completely intact. The only trouble is that due to some reason, it has disappeared from the file system’s master index.


Most computer users are familiar with the Recycle Bin. When you delete a file, it is removed from the file system’s index and placed in the Recycle Bin where it can be restored later. If you have emptied the Recycle Bin, the file is no longer present for restoration using this option. All references to the file have been removed from the file system’s index. Nevertheless, the file remains on your storage device and can be recovered by data recovery software.

Windows will treat the file as permanently deleted and will use the disk space the file is taking up when needed. For instance, if you installed a new program to your hard drive, the new program would be installed on the disk’s “free space” which could very well be where your deleted file resides. Because of this, file recovery is best performed immediately. The longer you wait your chances for a successful recovery decreased.

File recovery is also possible for disks that have been reformatted because reformatting doesn’t actually wipe the disk clean rather they replace the file system’s master index with a blank one – the data remains yet is marked as “free space.” This means that using the right tools, a user can retrieve data from a formatted disk.

At last, file recovery for damaged files, deleted files, and formatted disks, file recovery is possible when a disk contains bad sectors. A hard disk is made up of numerous sectors and clusters. During a disk’s lifespan, it’s not unusual for a few sectors to go bad. When this happens, data may be lost though it may still be recoverable with file recovery software.

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