Data recovery, in terms of technology, is basically the process of recovering lost, corrupt, inaccessible, formatted or otherwise damaged data from external media, primary storage or other files, if the data stored on them can not normally be retrieved in an ordinary way. The most common data loss scenario is as a result of accidental deletion or as a result of accidentally formatting the hard drive, especially the "frozen" stage. This data usually becomes irreparable and there are no more chances for data recovery even if you have a backup copy.
There are two types of data loss, physical or logical, and recovery of both depends on how the data loss occurred. Physical loss happens when physical objects or systems are affected by physical forces that may cause their parts to break down. These forces can be electromagnetic (e.g. lightning or electrical storms) physical shock, explosion or fire, and so on.
Logical loss occurs when data is corrupt in some way, either because the file is being written incorrectly or overwritten by another file. This can also occur due to a corruption of the file system itself (e.g. file system crash, bad sectors, invalid user names). Although logical data loss is often associated with physical loss, some physical factors can cause a logical data loss such as physical damage to the hard drive or other file systems, or software errors.
If you need to recover data, you can contact a data recovery specialist (or, in some cases, a computer repair specialist) to do the recovery. It is important, though, that you do not attempt this on your own as failure to backup the data and to perform data recovery on an expert level can cause severe problems, not only to your data but also to your entire computer.
Data recovery can be performed by any user who has sufficient knowledge and access to the source of the lost data and files. For example, if you accidentally delete or format the hard drive or any other file system component on your computer, you can restore these files or partitions using the proper tools. If you want to perform data recovery on your own, you should use the correct data recovery program and software. and should follow the instructions carefully.
The best option, however, is to hire the services of professional computer service or third-party data recovery specialists such as Data Doctors who can perform data recovery on your behalf. There are many companies offering data recovery services online, including online computer companies and physical data recovery services. However, you should not rely exclusively on the information available on these companies. It is highly recommended that you get a computer recovery quote, which will enable you to determine how much time and money will be required to recover the data, and the cost involved to recover the data, after which you will be able to determine whether it is worth your time and effort. Visit this page for more information related to this topic: https://en.wikipedia.org/wiki/Recover_My_Files.