![]() ![]() ![]() If you're using an older Mac (from 2010 or earlier), there's a chance that you can't use Recovery Mode. Your Mac will boot into the recovery partition. If you have a newer Mac with an Apple Silicon chip, shut down your machine, then start it up and keep the power button held down. For Mac models with an Intel processor, you'll need to reboot and start your Mac up while holding Command+R. ![]() Your Mac's Recovery Mode is a treasure trove of useful tools, and it's the easiest way to wipe your computer and start from scratch. If you don't have the option of using the Erase Assistant, or you have a particular version of macOS that you want to install, you'll have to do things the old-fashioned way by booting into Recovery Mode (or booting from a USB drive), erasing your drive Step One: Boot From Recovery Mode or an Installer If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device.Option 2: Wipe and Reinstall macOS from Scratch Secure erase options are available only for some types of storage devices. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. 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. 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. 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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