How to fix Toshiba external hard drive not showing up on Mac error?Ĭompared to Toshiba Canvio for Desktop drive, Toshiba portable hard drives offer more possibility. Whatever the reason is, it will prevent you from accessing the files stored on it. Besides Toshiba portable hard drive, this error can also occur to WD external hard drives, Seagate external hard drives, etc. Toshiba external hard drive not showing up could result from file catalog corruption, operating system errors, virus, physical damages, etc. In fact, there are various reasons that Mac doesn't recognize an external hard drive. Can anyone tell me why my external hard drive is not showing up on the Mac, and how to fix it? Why is your Toshiba external hard drive not show up on Mac? Reading something that the Toshiba hard drive won't show up on Mac laptops due to lack of power, I tried using an external powered USB hub still nothing. I have tried to swap around the USB connection cords but still not showing up. But when I plugged it into my Macbook Pro (mid 2012) it didn't show up. I have a Toshiba Canvio 1TB USB 3.0 hard drive.
