Before attempting this backup, please ensure that you are using the Outlook application. To install Outlook please follow the Office 365 for students guide here
Step 1
Open Outlook
Step 2
At the top of your Outlook ribbon, choose File.
Step 3
Choose Open & Export > Import/Export.
Step 4
Choose Export to a file.
Step 5
Click Outlook Data File (.pst)> Next.
Step 6
Select the name of the email account to export, as shown in the picture below. Only information for one account can be exported at a time.
Make sure that the Include subfolders check box is selected. This ensures that everything in the account will be exported: Calendar, Contacts, and Inbox. Choose Next.
Step 7
Click Browse to select where to save the Outlook Data File (.pst). Enter a file name, and choose OK to continue.
Note: If you’ve used export before, the previous folder location and file name appear. Type a different file name before choosing OK.
Outlook begins the export immediately unless a new Outlook Data File (.pst) is created or a password-protected file is used. Now that your Outlook data is in a .pst file, it's portable.
Step 8
In Outlook select File.
Step 9
Select Open & Export > Import/Export. This starts the Import/Export wizard.
Step 10
Select Import from another program or file, and then click Next.
Step 11
Select Outlook Data File (.pst) and click Next.
Step 12
Browse to the .pst file you want to import. Under Options, choose Replace duplicates with items imported, then choose Next.
Step 13
Select the Import items into the same folder in option then select the new student account from the dropdown menu.
Step 14
Choose Finish. Outlook starts importing the contents of your .pst file immediately. When the progress box disappears, the import is finished.
You may see a message that it's trying to connect with Microsoft 365. This happens when the Internet connection is interrupted, even for a moment. Once your Internet connection is re-established, Outlook will continue importing the .pst file.
Tip: If you want to retrieve only a few emails or contacts from an Outlook Data File (.pst), you can open the Outlook Data File, and then, in the navigation pane, drag and drop the emails and contacts from .pst file to your existing Outlook folders.