Formatting completely erases the drive.
Connect a USB drive to your Mac.
It should show up on your Desktop (in this case, it’s the icon called BACKUP).
Koson Rattanaphan / EyeEm
Make absolutely sure that you pick the correct drive during this step.
Select theMac OS Extended (Journaled)format.
This format is designed specifically for Macs and works with both current and older models.
If you gotta transfer large files between your Mac and a Windows computer, opt for exFAT format.
For transferring smaller files between operating systems, use MS-DOS (FAT) or FAT32.
Wait for the process to finish, then clickDone.
grab the partition you want to remove, and clickPartition.
poke the-symbol located under the pie chart.
choose the newly partitioned drive, and clickErase.
