Deleting the Encryption for Email Keys
If you are using a shared computer, you might want to delete your keys for privacy reasons and reinstall them each time you use that computer.
Note: If the email address of the message recipient is registered and you try to read a private message on a computer that does not have the private key, Encryption for Email automatically downloads the key.
Open the Key Manager, as described in Opening the Key Manager.
From the key pane in the top right of the Encryption for Email Key Manager window, select the key to delete.
Right-click the selected key and click Delete Key from the menu.
A confirmation window appears.
Click Yes.