
Drive letter conflict or no drive letter.RAW, invalid or unsupported file system.First, check the causes that make your external hard drive not working: You don't have to buy a new external hard drive and give up all the precious data. There are many reasons why the drive has become problematic, such as these: If your external hard drive suddenly stops working or cannot be recognized by your PC, don’t panic. Causes of External Hard Drive Not Working/Responding


The following solutions for fixing problems with external hard drives will work with any brand, including WD Elements, Seagate, SanDisk, Toshiba and others.

Connect Non-Working External DriveĬhange USB cable, USB Port > Change PC.
