So, you only need to decide whether you want to use the drive for other data or simply want to free up space on the drive. Once you understand the difference, it will be easier to decide whether you prefer to reformat Mac or simple formatting....
Mac OS Extended (Journaled) orHFS+Journaled is a file system format that the Mac operating system uses to manage data on a storage device, such as a hard drive, a solid-state drive, or a USB flash drive. It replaced Mac OS Standard, also called HFS, as the primary file system on Ma...
First off if the machine is bootable to OS X, head to the Apple Menu > About This Mac and note theOS X version. Then do > More Information and write down all what you see there. What is important is theModel Identifier, theSerial Numberand theMemory, get all this written down. ...
If you have a bootable clone of the internal drive on an external drive, boot from that, open Disc Utility, select the internal drive, and reformat it. Or, put your computer into Target Disk Mode, connect it to another FireWire-equipped Mac, and when its hard drive appears on the Host...
Mac OS Extended:Talking about Mac OS Extended, it is perfectly suitable if you want to use a drive for backup. The Time Machine feature of Mac still doesn’t have support for APFS disk. In case you select this format, Time Machine will prompt you to reformat the drive....
Since formatting hard drives for Mac erases all data, make sure you’ve created a backup of all necessary files from that drive before going through the steps below. Here’s how to reformat external hard drive Mac using Disk Utility:
A step-by-step tutorial about how to factory reset a MacBook Pro or MacBook Air without data loss, including the devices/accounts disconnection, Mac hard drive formatting, and OS reinstallation. Factory resetting a MacBook Pro or MacBook Airis a big move, but it is necessary especially when...
Step 2. Input diskutil list to display all drives on your Mac. Identify the unmountable drive by its identifier. Step 3. Input diskutil mount /dev/disk1s2 command to mount the drive. Replace 'disk1s2' with the identifier of your unmountable drive. Fix 5. Reformat the Problematic Disk ...
Make a full bootable clone of your Mac, just in case the worst happens. Grab a USB stick that’s at least 16GB capacity or an external hard drive. Erase and reformat the USB stick or external disk. Create a bootable installer on the disk. ...
d better choose APFS or APFS encrypted disks for Time Machine backup. You’ll be asked to erase and reformat the disk if you use a new one that’s not formatted as APFS to backup. Well, the system won’t ask you to erase and reformat if you choose to back up on a Mac OS ...