Mac erase free space recovery
This Mac data erasure software offers three modes to erase data including erasing free disk space. With the help of Super Eraser for Mac , you can easily erase free disk space of Mac hard drive or storage media device.
OS X Disk Utility missing options to erase free disk space
Just install Super Eraser for Mac on your Mac and launch it. It will show you three data erasure modes, just select "Wipe Free Space", and select the hard drive you want to erase. Super Eraser for Mac can help you securely erase free disk space on Mac, erase Mac trash bin. It is the best solution to wipe free space of Mac hard drive, memory card, external hard drive, digital camera, SD card, USB drive, etc.
How to Secure Erase Free Space on Mac Hard Drive
If you need to erase all contents of a partition but not its hosting whole-disk, use the zeroDisk or randomDisk verbs. Ownership of the affected disk is required. Another option is to use an old version of Disk Utility in modern versions of Mac OS X, either from a boot drive or recovery mode , of an older Mac OS release, or with the application itself, but that is generally not recommended.
For SSD volumes, a better option is to enable and use FileVault disk encryption on the Mac , which encrypts data on the drive making it unrecoverable without the FileVault key, thus obviating the need to securely erase free space on the volume. Know of any other helpful secure data removal tips or tricks, or another way to securely erase your free disk space in modern versions of Mac OS X?
Let us know in the comments.
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Enjoy this tip? Subscribe to the OSXDaily newsletter to get more of our great Apple tips, tricks, and important news delivered to your inbox! Enter your email address below:. First, the article is wrong. All you are doing is writing zeros here where file contents used to be. Secure erase is still needed.
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Second, most formats DO not do this. Formatting in most cases simply resets the pointers to the data. It does not erase the data. If you remove that… Goodbye to ALL your data. This would just kill the drive sooner. Instead, write zeros or whatever a single time. That is really enough to remove the data from the deleted space.
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I get the same error using the terminal commands listed here. Says it can not set up temporary file. Does anyone know how to get past this problem? All good. I have tried this several times on two different macs and it fails every time. What gives? Then simply reinstall El Capitan. It really is that simple. Just send it to the guy from the hydraulic press channel on YouTube. Considering that FileVault leaves the mac a little bit freezing, this secure erase free space option is way better than any other for basic users.
Fairly technical process to get it set up:. However, Disk Utility erases free disk space by simply making a giant file that is nothing but zeros or random data.
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It left that huge file, leaving me with Kb of free space, instead of 70Gb. What's worse is that I had no idea where it left that file! A reboot didn't clear it out, and I couldn't find any help on the usual Mac sites It turns out that the fix is simple: just throw some file away and empty the trash, and you'll get the space back. This will create an empty file on your desktop you can then delete. The following comments are owned by whoever posted them.
This site is not responsible for what they say. You might want to stick with the 7-pass format next time The giant files that are created during a free-space-erase are. Why not just reformat the disk? Authored by: steresi on Mar 28, '07 AM. Authored by: mbenchoff on Mar 28, '07 AM. Reformatting the disk would require a reinstallation of everything, OS included.