Quite often our experts have to perform data recovery from hard drives affected by large amounts of damaged unreadable sectors. Hard drive having numerous bad sectors is not able to operate properly: it slows down dramatically, it is giving various error messages including dreadful “blue screen of death”, sometimes disappears or shows unreadable volumes under “My Computer”, sometimes it makes occasional clicking sounds. This problem can affect any hard drive regardless of type, brand, model and size.
Please note that it is very dangerous to use “over-the-counter” software data recovery solutions to cure this problem, in most cases they will simply kill your drive completely before you get hold of your precious data! Bad sectors tend to develop catastrophically, without proper handling they will eventually cause a head crash or even unrecoverable scoring of magnetic platters.
Data recovery from drives affected by bad sectors problem is performed by using very sophisticated (and expensive!) professional data recovery tools. Unlike simple sector-by-sector imagers these intelligent tools are able to avoid damaged areas as much as possible, selectively targeting critical file system objects (boot sectors, bitmaps, master file tables, catalog files or superblocks) to get immediate access to most important user’s files and carefully extract them. Our success rate for such recovery jobs is at least 95%.