How to format your drive in Mac OS 10.11

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 the latest version of Mac OS X.

1. Open Disk Utility
Applications > Utilities > Disk Utilities

2. Select the Seagate drive on the left.

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3. Select Erase which opens the following window.

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4. Rename the drive
5. Select OS X Extended (Journaled) for Format
6. Select GUID Partition Map for Scheme

Warning: Formatting the drive will erase all data on the drive, so you should copy any data you want off the drive prior to formatting.

7. Select Erase again.
8. Disk Utility will start formatting the drive.

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9. Once complete, click done.

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