If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device. Secure erase options are available only for some types of storage devices. On the Storage screen, you should see a graphic showing your. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. If your Mac is running at least that version of the system, go to the Apple Menu, select About This Mac and click the Storage tab. Right-click (or control-click) on the app folder. Opening library caches on OS X Select the app folder you wish to remove the cache from. A list of caches from active apps will appear on your desktop. 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. Opening library caches on OS X Type /Library/caches into the text box. Ĭlick the Scheme pop-up menu, then choose GUID Partition Map. In the sidebar, select the storage device you want to erase, then click the Erase button. Don't see this button macOS Monterey From the Apple menu in the corner of your screen, choose System Preferences. If you want to erase any other type of storage device: Double-click Disk Utility in the /Applications/Utilities folder. From the Apple menu in the corner of your screen, choose System Settings. 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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