App “OnyX” - delete and create local snapshots

You can use this option to show the Time Machine local snapshots, to create one, and to delete them all. Deleting the local snapshots can take a very long time to complete. Wait for the task to finish. Delete the Time Machine local snapshots. Do you really want to delete the Time Machine local snapshots? Local snapshots deleted. The Time Machine local snapshots have been successfully deleted.

How to use the Mac application “OnyX” - Maintenance tool Mac - How to use and set up Time Machine