Troubleshooting & messages · Moves and copies that didn't finish
Why wasn't Storage Studio allowed to read or write some files in a folder?
Short answer: Either the drive won't accept writes (e.g. NTFS is read-only on a Mac) or Storage Studio lacks Full Disk Access. Check both, then try again — your original is untouched.
Either the destination drive refused writes, or macOS refused Storage Studio access to some files in the folder. Your original is safe and untouched.
### Check these 1. Is the destination read-only? Drives formatted as NTFS are read-only on a Mac. In Finder, select the drive and choose Get Info to see its format. 2. Full Disk Access — make sure Storage Studio is switched on in System Settings → Privacy & Security → Full Disk Access. 3. Locked files — a file marked Locked in Finder's Get Info can block a move.
Then try again.