Solved I can't attempt to eject unless I expand the drive

I keep receiving error message:

"An error occurred while ejecting 'CD Drive ( J: Sims3SP06'."

I can't attempt to eject unless I expand the drive in File Explorer, otherwise it shows as faded grey and unavailable as an option.

I tried restarting the computer to no avail.

It was working just fine up until mounting this particular ISO. I can still access the files within the ISO. It doesn't show on device manager, it does show in file explorer, and doesn't give me the option to eject unless i expand the window and then shows that error code. I'm stumped. =/

Any help would be greatly appreciated.