Securely erase your hard drive with Disk Utility. Macworld. Macworld is your best source for all things Apple.Use WipeDrive to wipe all data from your computer and start fresh with a clean hard drive.
Step 5 Erase a Mac hard drive Erase the hard drive on a Mac by going to Applications, Utilities, and opening the Disk Utility.Instead, the reference to the file is removed from the file system (which keeps a list of all the files on your computer), so the computer is able to write new information in the same physical area when space is needed.
Press the power button and a dialog box will appear that allows you to shut down.
Do you want to erase data from external hard dive before selling or donating.
Have to securely delete your personal data on hard drive before you donate or discard your old computer.
How should I erase my hard drive before I. and completely delete the contents of any hard disk. is a function to wipe an entire drive. Ask Leo.
To truly erase hard drive data forever, you may have to do more than format the drive or delete files.
In a case where you have accidentally completed a format hard drive,.Whether you're selling your computer, trying a new operating system, or setting up an external drive for backups, sometimes you need to completely erase and format a...Gizmodo has a great article on why you need to completely erase hard drives,.