Although external hard drive not working or suddenly stop showing up on PC is no longer a new problem, it is still a difficult problem for ordinary users when their external hard drive, USB or SD card, etc. suddenly fails they are recognized, they do not work. or by answering on the PC. Below is 1 quick fix and 4 methods to fix WD external hard drive issue. If your external hard drive or storage devices are having this problem, relax and just follow below to fix your problem right now.