If you haven't done this already, check how the external drive appears on another computer as well. I'd also recommend checking you have performed as well. Upon reboot, it should automatically reinstall itself and, hopefully, get properly detected. Welcome to the TH Community, You mentioned that the external is recognized in Disk Management, right? So how does it appear there? Can you share a screenshot? I'd also advise you to go to Device manager and try to resolve the issue. TOSHIBA External USB 3.0 USB Device - there are 4 drivers found for the selected device, which you can download from our website for free.
