Modify the Registry is another way to fix the problem but it may be a little complicated to computer novices. Assign a new letter to your WD external hard drive and save the change. Find and right-click on the WD external hard drive > select Change Drive Letter and Paths… Type in Disk Management in the search box. Solution 3 Change the drive letter to make WD external hard drive show up Third, go to This PC/My Computer and check for the external drive, if it doesn't show up, restart the PC and reconnect the WD external hard drive. Check whether there is an unrecognizable drive or not, if there is any, uninstall it. Second, expand Universal Serial Universal Serial Bus controllers and right-click on each USB device > Uninstall. Solution 2 Uninstall WD external drive and connect it againįirst, type in devmgmt.msc and press Enter. If your computer system is Windows 10, you can type in Show hidden devices in the search box.