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The Default path for All Microsoft Office Outlook .pst file location is the User data(Your account name)/Local Settings/Application Data/Microsoft/Outlook/ this is where the .pst files are stored by default!!! this goes for All Windows OS! Tuesday, June 05, 2012 12:18 PM.
Open an Outlook Data File (.pst). If you have an Outlook Data File (.pst) that does not appear in the Navigation Pane, you can add it so that you can work with the items in the data file. Click the File tab. Click Account Settings, and then click Account Settings.