Open the Disk Utility app on your Mac using one of the following methods, depending on the type of disk or volume you want to. If you have any files you want to save, copy them to another storage device. Erasing a storage device deletes everything on it. If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device. In Disk Utility on Mac, you can erase and reformat storage devices to use with your Mac. Secure erase options are available only for some types of storage devices. Right-click the partition you want to wipe recoverable data and select Erase. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. This feature only wipes free disk space and leaves existing files intact. If the Scheme pop-up menu isn’t available, make sure you selected the storage device you want to erase - it’s at the top of the hierarchy.Ĭlick the Format pop-up menu, then choose a file system format. Important Secure Erase information can be discovered by. If prompted to enter a password, this will be the. Secure Erase by Parted Magic works with both SSD (Solid State Drives) and HDD (Hard Disk Drives). When the Utilities window appears, select Disk Utility. Release when the Apple logo or other image appears. Turn on your Mac and continue to press and hold the power button until the startup options window comes up. Intel-based Mac: Turn on your Mac and press and hold Command () + R. Ĭlick the Scheme pop-up menu, then choose GUID Partition Map. Mac with Apple silicon: Turn on your Mac and press and hold the power button until you the startup options appear. Use Disk Utility to Securely Erase Free Space If in the past users have neglected to. In the sidebar, select the storage device you want to erase, then click the Erase button. Mac OS X Support Essentials v10.6: A Guide to Supporting and. If you want to erase any other type of storage device: Double-click Disk Utility in the /Applications/Utilities folder. Note: If you want to get your Mac ready to trade in, sell or give away, and your computer is a Mac with Apple silicon or an Intel-based Mac with an Apple T2 Security Chip, use Erase Assistant.
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