In computing, data recovery is a process of retrieving inaccessible data from corrupted or damaged storage by true data recovery experts. Storage devices such as hard drives, flash drives and any removable media. When your data is no longer accessible by normal means, whether it is sitting on an internal hard drive or an external storage device you may need the help of true data recovery experts. Data recovery requires specialized tools to accomplish a successful recovery.
All hard drives and storage devices fail differently, some may have physical damage other may have logical errors. Each of these issues are handled with specialized tools respectively. These are data recovery tools only available and owned by data recovery experts and found no where else.
For example there are many off the shelf software sold online which claims can recover data. Yes they can recover data, but they can recover data only from medias in good condition. Inexperienced computer technicians often run these tool on damaged hard drives causing the media to be damaged further. Most technician don't have the most basic tools to diagnose a hard drive, they often start formatting and reinstall windows on a crashed computers...Have they asked themselves why it crashed? NO!
Data recovery services are sophisticated and performed only by true data recovery experts and not by John Doe at random computer repair shop. Data recovery services are very time consuming and because they are specialized data recovery service, the service are often higher as compared to a data backup.
Cloning a damaged hard drive is often performed at data recovery labs by data recovery experts to ensure no further damage is caused to the source drive. Depending on the size of the source drive this process can take hours or days to complete. The process for a complete data recovery and reconstruction is then performed on the newly copied drive.
Can your computer technician do that? NO.
When you have important data to recover, always look for experienced data recovery experts, your chance of successful data recovery is much higher than when you try to perform the data recovery yourself. Believe me you will thank me later for this advice.