Written by Jake Peterson From Lifehacker
Original Article: https://lifehacker.com/why-finder-wont-let-you-eject-disk-images-and-how-to-f-1848320523
It’s frustrating when your computer doesn’t do what you ask. If you no longer need a disk image connected to your Mac, and you go to eject it, it can be frustrating to be met with an error: “The disk couldn’t be ejected because the Finder is using it.” Using it for what?