Troubleshooting & messages · Moves and copies that didn't finish
Why does it say "Your Mac wouldn't let Storage Studio move" a folder?
Short answer: macOS refused because Storage Studio lacks Full Disk Access. Turn it on (or off and on again) in System Settings → Privacy & Security → Full Disk Access, then retry. Your original is untouched.
macOS refused the move — almost always because Storage Studio doesn't currently have Full Disk Access, which protected folders such as Documents, Desktop, Downloads and your Library require. Your original is safe and untouched.
### What to do 1. Open System Settings → Privacy & Security → Full Disk Access. 2. Make sure Storage Studio is listed and switched on. If it already is, switch it off and on again — an update can quietly stop macOS honouring an earlier grant. 3. Try the move again.