Data Transfers · Copy, Move and Sync
Is Move safe — when are the original files removed?
Short answer: Yes. Move copies each file, checks it at the destination, and only then removes the original. If something fails, the originals that didn't make it across stay where they were.
Yes. Move copies first, checks what arrived at the destination, and only then removes the source. If a file doesn't make it across, its original stays where it was.
If a Move is cancelled or fails part-way, files that already finished are at the destination and everything else is still at the source — nothing is left in neither place. Open the transfer's detail to see what happened, then start a new Move to finish the rest; already-moved files are no longer in the source, so only what's left is sent.
If you're unsure, run a Copy first, check the destination, and delete the originals yourself.
Related: Copy, Move or Sync? · A transfer failed — what now?