Troubleshooting & messages · Drive connection and drive messages
What does "The switch couldn't be completed. Your old drive still has everything" mean?
Short answer: Transfer Drive stopped before the new drive's copy was complete, so Storage Studio kept using the old drive untouched. Connect both directly, check space, and run it again.
Transfer Drive copies everything from your current drive to a new one and only switches over once the copy is complete and checked. Something stopped it before that point, so Storage Studio kept using your old drive — nothing was deleted from it.
### What to do 1. Keep both drives connected directly to the Mac. 2. Make sure the new drive has more free space than what's on the old one. 3. Start Transfer Drive again.