


Once the external hard drive is not initialized, you can try some methods to fix the issue and make the external hard drive usable again. The file system on the drive becomes corrupted/damaged/crashed.If there are some bad sectors, it will lead to an uninitialized issue.Partition on the external hard drive is lost and the drive becomes uninitialized.Virus infection will also cause damage to the drive and make it uninitialized.Cannot see the connected USB flash drive in Finder.Physical damages for the hard drive or connection socket/port.Connection issues with the external hard drive, like cable, interface, or port.Here are the common causes that will lead to the issue that external drive is not initialized on Mac:

If an external hard drive was working normally before but became uninitialized somehow, there are different reasons. Why the external hard drive will become uninitialized? To find out the clues and try to fix the issue, please read on and we will show you some solutions. Also, you are not able to access it or store data on the drive. If the drive becomes uninitialized on Mac, you cannot see it directly in Finder. Part 3: How to recover data from an uninitialized external hard drive?.Part 2: 4 fixes for the issue that external drive becomes uninitialized.Part 1: Why the external hard drive will become uninitialized?.
