Troubleshooting & messages · Moves and copies that didn't finish
What does "Quit the app and try again — the folder is in use right now" mean?
Short answer: An app has files in that folder open, so moving it now could damage its work. Quit the listed apps, then use Check again or retry the move.
An app currently has files in that folder open, and moving a folder out from under a running app can damage its work. Storage Studio names the apps it found so you know what to close.
### What to do 1. Quit the apps listed (save your work first). 2. Click Check again in the sheet, or start the move again. 3. If an app keeps the folder open in the background, quit it from its own menu or restart your Mac before moving.
See moving folders.