How to fix/repair USB flash drive not mounting issue on Mac? Disk Utility failure, log file corruption, OS malfunction on this Mac.File system errors, volume header corruptions, etc.Faulty connections like broken cable and wobbly USB port.
The possible reasons for this issue include: This is because that this external drive is connected to the Mac computer through USB cable, USB port and many other components. What makes the hard drive not working problemsĀ like USB flash drive unmounted on Mac can be various. Why the USB flash drive is not mounting on Mac? But don't worry, this page talks about the reasons for this issue, and how to fix "USB flash drive not mounting on Mac" without data loss even if the external hard drive is not showing up on Mac. However, if the USB flash drive is not mounted on Mac, you will lose access to the USB flash drive as well as to the data stored on it. It is user-friendly that Mac will automatically mount the inserted USB flash drives. How can I fix/repair the USB flash drive not mounting issue on Mac? But the USB flash drive was grayed out in Disk Utility and I could not mount it. So, I went to Disk Utility, it was there. When I plugged in my USB flash driveĀ on macOS High Sierra, I can't see it in Finder or on the Desktop. How to recover lost data from unmounted/unrecognizable USB flash drives?