
If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. Then select Disk Utility from the Utilities window and click Continue. Before continuing, make sure that you have a backup of any files that you want to keep.

If a wireless network is available, you can choose it from the Wi-Fi menu, which is also available in macOS Recovery.Įrasing a disk or volume permanently deletes all of its files. All you need is a connection to the Internet. macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. You can encrypt it so that no one can access the contents on your drive. Mac OS Extended (encrypted) would be an ideal option if you probably carry your laptop or external drive here and there. Mac OS Extended (Journaled/HFS+): If you didn't update your Mac OS to High Sierra, the default file system on your Mac shoule be Mac OS Extended. It means the data on your hard drive will be permanently erased. It can format your hard drive and erase all the data on your hard drive, beyond the scope of data recovery. AweEraser for Mac is a data erasure application. Solution 3: format and erase hard drive under macOS 10.13 High Sierra with AweEraser for Mac. Earlier versions of macOS don't work with APFS-formatted volumes. Will you be using the disk with another Mac? If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer.

We'll show you everything you need to know about the. If you buy a new external hard drive, you may notice that working between Mac and PC is an often difficult - but it doesn't need to be.
