Cannot unistall drive properly


I downloaded the Drive instead of the Client by mistake so I removed it using AppCleaner.

The issue I have is that I have a remaining image disk on my desktop and I cannot remove it:

when I try to get rid of it I have this message:
“cannot eject disk because it’s used by the Finder”

The app is closed and I don’t have anything running in the Finder.

Can you help me ?