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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. Thus, if you want your external hard drive to be both Mac and PC compatible, choose MS-DOS, also known as FAT, or ExFAT instead.
REFORMAT MAC HD TO APFS AND EXTERNAL HARDRIVE MAC OS
(Both APFS and Mac OS Extended file system are Mac-exclusive. 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. Step 3: Choose a proper file system and rename your hard disk. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased.
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Click the Format pop-up menu, then choose a file system format. If you’re reformatting a USB stick or portable hard drive, you may want to use APFS encrypted to protect your data if the. If you’re using it as your Mac’s main drive, APFS is the best choice as it has replaced Mac OS Extended as Apple’s preferred file system for macOS. Click the Scheme pop-up menu, then choose GUID Partition Map. When you reformat a drive, you can choose which file system to use. 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. 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. If APFS is not available then the drive is in MBR and not GUID Partition Map. There is only one rule that you need to keep in mind when reformatting a drive. NOTE: Make sure that Scheme is set to GUID Partition Map and not Master Boot Record (MBR). 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. Answer (1 of 7): Q: How hard is it to reformat the hard drive on a Mac computer A: It’s very easy.