Question: external hard drive will not eject using High Sierra
Hi, I am using both an iMac 21" (2015) with High Sierra and a 13" MB Air, also with High Sierra. I have a WD Elements external HD that I have been using for a Time Machine backup. I want to erase it so I can start over but the drive will not erase, keep getting an error message saying the drive cannot erase because disk utility could not unmount the drive. Also, it will not eject so to do so I have to shut down and unplug the drive. Help!
MacBook Pro, Mac OS X (10.7)