

If the Boot drive was not there, then the error would have remained unresolved. It is the most common solution to fix the error with the support of Boot drive. Solution 1: Fix the error “Can’t unmount disk mac” using the USB Boot drive

How to fix “Couldn’t unmount disk Error on Mac”įollowing are some of the solutions that can help to fix the error message “Couldn’t unmount disk on Mac”. Drive being used by any other application or process.There are plenty of reasons associated with such an error message on Mac we have listed a couple of them below: What Causes the Error “Can’t unmount disk Mac” Recover Data on Mac using Bitwar Data Recovery Software.

