Click on the [[!img lib/view-more.png alt="Drive Options" class="symbolic" link="no"]] button in the title bar and choose **Format Disk** to erase all the existing partitions on the device.
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In the <span class="guilabel">**Format Disk</span>** dialog:
Click on the <span class="guimenu">[[!img lib/list-add.png alt="Create partition" class="symbolic" link="no"]]</span> button to create a new partition on the device.
If you want to create another partition in the free space on the device, click on the free space and then click on the <span class="guimenu">[[!img lib/list-add.png alt="Create partition" class="symbolic" link="no"]]</span> button again.
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Plug in the external storage device that you want to usehas the encrypted partition.
After you finished using the partition, click on the [[!img lib/media-eject.png alt="Eject" class="symbolic" link="no"]] button next to the partition in the sidebar of the *Files* browser to eject the partition safety and lock again the encryption.