Mac storage basics · Games and virtual machines
Do virtual machine snapshots use up disk space?
Short answer: Yes — every snapshot keeps the changes made since it was taken, so old snapshots add up. Delete the ones you no longer need in the VM app's snapshot manager.
Yes. Each snapshot keeps the state of the virtual disk at that moment, so every change made afterwards is stored as well. A virtual machine with several old snapshots can be far larger than the disk inside it.
Open your virtualisation app's snapshot manager and delete snapshots you no longer need to roll back to — keep one known-good snapshot if you rely on it. Deleting a snapshot merges or discards its changes, which can take a while on a big VM; let it finish before shutting the Mac down.