To stop excluding an item, such as an external hard drive, select the item and click the remove (–) button. 10 (and higher) and Windows 7 (and higher). External Hard Drive Not Mounting on Mac Is Fixable, Go and Make It Work Now. Step 2: Click the ' Edit ' button from the security tab.
Make sure to back up all data before erasing the disc. How to force mount an external hard drive mac This will load up OS X Recovery.
