Once a user account is deleted it cannot be undeleted.

To delete an account:

1. Click on the 'Users and Permissions' menu item from the tool bar. A drop-down menu will appear.
2. Hover over the menu item 'User Accounts'. A sub-menu will appear.
3. Click on the 'Delete Account' menu item to open the 'Delete Account' dialog window.
4. Select the user you want to delete from the 'Username' dropdown list.
5. Click 'OK' to delete the user account.