When you log into your Live@edu email account for the first time, it is defaulted to show your emails in 'conversation view'.
Having conversation view set, Outlook identifies which emails are replies to an original and will group them together, so you can easily see the 'thread' of the email conversation.
You can toggle this feature on or off, choose to use it in selected folders or across your whole mailbox.
At the top of screen, choose 'View' tab...
...and in the ribbon there is a tick box labeled 'Show as Conversations'.
Having this box ticked or unticked, toggles the conversation feature on and off.
Depending on whether it is on or off you will see another message...
...and as you can see you are now able to choose to set this feature for all folders in your mailbox or just the folder that is showing underneath the ribbon at that time.