Apps · Drive, safety and recovery
What happens if I unplug my external drive while an app is being moved?
Short answer: The app is safe: the original isn't replaced until the copy is finished and checked. Reconnect the drive and Storage Studio resumes the move or puts the app back as it was.
Your app is safe. The original stays on your Mac until the copy on the fast drive has been finished and checked, so an interrupted move never leaves you without the app. When you reconnect the drive, Storage Studio picks the move up where it left off, or returns the app to its original place with nothing missing.
To avoid interruptions, let moves finish before ejecting — Storage Studio's eject confirmation tells you if something is still running.