Use Automatic Deletion

When you drag a file or folder to the Trash, it isn’t deleted, just moved aside. Ordinarily, it’s only when you empty the Trash (by choosing “Finder” > “Empty Trash”) that your Mac frees up the space that was occupied by those items. But Hazel can selectively and automatically delete items from your Trash (thus recovering the space they used)—meaning you never have to empty the Trash manually again. Hazel can use either or both of two criteria to determine which items should be deleted from the Trash:

To enable automatic deletion:

Choose normal or secure deletion:

Normally, when files are deleted, their data is still intact on your disk or SSD, and OS X merely marks the space they occupy as being available for reuse. Until another file overwrites that space, the file could potentially be retrieved by disk recover or undelete tools. So Hazel offers a 7-pass secure deletion option, which overwrites deleted files to make them unrecoverable.

To use normal deletion, select “normally” in the “Delete files” area. To delete files securely, select “securely (shred).”

However, please note the following:

SEE ALSO

Use App Sweep