What are bad sectors?
At CDR we try to give customers plenty of information to help them understand how their hard disk drive or solid state disk has failed, what can be done to recover the data, and give them a fixed price quotation for the work. Our quotations always include the cost of donor parts required to complete the work so there will not be any nasty surprises once we make a start on the recovery work.
Is your disk performing slowly, causing your computer to hang, or even crash and restart? If so then please read this article on bad sectors / degraded media.