When signed in to Windows Live, the menu bar at the top provides access to Hotmail and Messenger and to the user’s SkyDrive. The individual commands provide access to the documents or photos portion.
Each of the commands also provides a drop-down menu to select the specific item or task desired. Clicking on the “Windows Live” title also presents a menu. The menus are shown here.
Under the Office command the documents and document folders can be reached. From Photos the albums can be displayed. When SkyDrive is clicked (left menu) all of the items on the SkyDrive are shown.
The different option just provide for quick access to the items of interest, there is no other difference.