macOS starting version 10.13—Make sure to select the disk and not
just the volume. If you don't see two entries listed in the sidebar,
change the view in disk utility to show both the drive and the volume.
The view button is in the upper left side of the Disk Utility window.
Change the view to Show All Devices. This feature was introduced in
macOS 10.13 and is not available in 10.11 or 10.12.
3. Select Erase.
4. A dialog box opens. Enter a name for the drive. This will be the name displayed when the drive mounts.
5. For Format, select
6. For Scheme, select
7. Click Erase.
8. Disk Utility formats the drive. When it's finished, click Done.
Windows
1. Make sure the storage device is connected to and mounted on the computer.
2. Go to Search and then type diskmgmt.msc. In the search results, double-click
3. From the list of storage devices in the middle of the Disk Management window, locate your LaCie
device.
4. The partition must be available to format. If it is currently formatted, right click on the partition and
then choose Delete.
5. To create a new partition, right click on the volume and select
screen instructions when the New Simple Volume Wizard appears.
Optional Formatting and
OS X Extended
(Journaled).
GUID Partition
Map.
Disk
Volume. Follow the on-
New Simple
9/22/23
Management.
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