If the hard drive failed without apparent cause, behaves seemingly normally - doesn't emit non-standard noises, then try to connect it to another computer, try a different data cable, for external drives a different USB cable, or possibly power supply. In other cases, only if the data is disposable, you can try software for data recovery. However, even deleted data cannot be recovered by yourself from disks with shingled recording (SMR), and simply turning on such a disk reduces the chances of their recovery. Take advantage of our free diagnosis.