
How to format a drive in Mac OS 10.6 to 10.10 Reformatting the drive will erase all data on the drive, so you should copy any data you want off the drive prior to formatting. The following is based on Mac OS X version 10.10.5. However, the steps are suitable for Mac OS X 10.6.8 to 10.10.5. For instructions on how to format a drive in Mac OS 10.11 (El Capitan) and above click. To reformat the drive in Mac OS X: 1. Open Disk Utility Applications>Utilities>Disk Utilities 2. Select the Seagate drive on the left that shows the capacity 3.
'Is it possible to format FAT32 and NTFS drives on Mac by myself?' A user asked us about this question. Certainly you can format the drives yourself by directly setting in the 'Application' on Mac. Many people think it is hard to format the windows drive on Macintosh. No worry, actually it is not. You can repurpose any hard drive to work with your Mac. Macs running OS 10.5 and higher -- Leopard to Yosemite -- include the Disk Utility program that allows users to check and repair disks and drives and to format or erase drives.
Select the Partition tab on the right hand side of the Disk Utility Window 4. Select Partition Layout and select 1 partition 5. Next to name you will see untitled 1 where you can name the drive. This will be the name shown when the drive mounts. Change Format to Mac OS Extended (Journaled) 7.

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Select Options and select GUID Partition Table 8. Select Apply You will get the follow window advising you that this is a data destructive process and any data currently on the drive will be deleted 10.
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Select Partition to finish the formatting process.