When a file is stored on a mechanical disk it occupies a physical location on the disk surface. The reason why secure erase features and tools have been taken out of macOS Sierra is because all MacBooks use SSDs these days and you cannot securely erase a file on an SSD. Securely erase files on solid state disks
#Best free permanent eraser for mac mac
Securely deleting files on a Mac running macOS and having a mechanical disk drive are limited and you are in the same situation as someone with a modern Mac with an SSD. Now you can drag files from Finder or the desktop and drop them on the icon to securely erase them. Permanent Eraser securely deletes files on old disk drivesĭrag Permanent Eraser from the Applications folder and drop it on the Dock to add an icon. When run, it securely erases files in the Trash (don't use it on SSDs). If you want a free secure eraser for your Mac, try Permanent Eraser. Elsewhere there is MacPaw CleanMyMac 3 and IObit MacBooster 4. One of the few in the Mac App Store is File Shredder. Third party tools are becoming harder to find and some that used to be available have disappeared too. In macOS Sierra, Apple removed this Terminal command so you cannot securely delete files and folders from either Finder or Terminal. If you want to remove a folder instead of a file, open a Terminal window and enter:Īnd drag a folder to the Terminal window to enter the path. This used to work with El Capitan and earlier Press Enter and the file is securely deleted by overwriting it with junk. This inserts the path to the file without you having to manually type it. Now drag a file from a Finder window and drop it on the command in the Terminal window. With a space after the v (srm is short for secure remove). Open Terminal in the Utilities folder (click Go, Utilities). However, it is still possible to securely erase files in El Capitan using a command in a Terminal window. It deletes every file in the Trash and you can’t select individual ones though.įrom El Capitan onwards this feature was removed and you could no longer securely delete files in the Trash. If the file is recovered then all that is seen is junk data. This overwrites files with junk data before deleting them.
Open a Finder window and drag the files to the Trash, then go to the Finder menu and select Secure Empty Trash. If you have an old version of OS X, such as Yosemite and older, and a Mac with a mechanical disk drive, you can easily delete files securely so they cannot be recovered.
Related: Secure the files on a USB thumb drive in case you lose it Securely erase files on mechanical disks That depends on whether you have an old style mechanical disk drive, the sort of drive that used to be common until a few years ago, or whether your Mac has an SSD - a solid state disk. What if you have private photos, documents and other files that you absolutely don’t want anyone to ever see? How do you make sure they cannot be recovered once deleted, even with the best file recovery software? There are clever utilities available for the Apple Mac like Disk Drill that can recover deleted files on disks and this shows just how easy it to access files you thought were gone forever. If someone had access to your Mac they could recover them. When files are deleted they are not removed from the disk and they remain there.
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