Erase Free Space Mac
Then click erase free space in the middle pane.
Erase free space mac. With the help of super eraser for mac you can easily erase free disk space of mac hard drive or storage media device. What the erase free space feature did and still does in prior versions of mac os x was overwrite the free space on a drive to prevent file recovery adding a layer of security and privacy to file removal much in the way that secure empty trash performed a similar function of overwriting data after removal. Easily erase free disk space on mac.
Just install super eraser for mac on your mac and launch it. Each segment of the bar is an estimate of the storage space used by a category of files. Choose apple menu about this mac then click storage.
It will show you three data erasure modes just select wipe free space and select the hard drive you want to erase. Select a volume you want to erase the free space on. Click the manage button to open the storage management window pictured below.