That was my question as well. Need more specifics, e.g., is the drive external or internal? Is it the primary HDD, i.e., the primary boot drive, or a secondary? Is the drive in a desktop or laptop computer?
Not sure if this is applicable or not, but I have been able to salvage data from a few drives from PC laptops by removing them and connecting them via SATA cable to a secondary HDD controller in a PC desktop computer. Before I tried this, I wasn't sure whether the drive had failed or the motherboard had fried.