Data recovery is the process which restores damaged data or inaccessible files to a usable state. This can be accomplished by different methods that include using software designed for specific purposes, laboratory techniques, and hardware. The right approach and timely application are the key to successful recovery. In most instances, data can be recovered even if the hard drive has been physically damaged.
The most crucial stage in the process is to backup the data, which should be conducted regularly. This will help save a copy of the data and enable quick recovery in the event of a disaster occurs. DIY recovery methods are not recommended; a botched attempt at DIY repair could damage the files and complicate professional recovery efforts.
A program that looks for signatures may be able to recover a variety of files. These are patterns that commonly indicate the type of file, such as png files start with a ‘%0PNG’ syllable and MP3 files begin with an ‘ID3’ string. This method works best when the original files have not data recovery been altered and remain intact.
Data recovery methods that are more sophisticated use the file structure to find information that may be hidden in damaged areas of a drive. This may include data carving, which relies on a knowledge of file structures to retrieve fragments of missing or damaged files. The final step is to restore the files and folders to their original working state. This is usually done with a copy of the original data to stop further damage.