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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.
By default, Outlook uses the following path to create or to open a .pst file: To change the default path that Outlook uses for a .pst file, use one of the following methods. Important This section, method, or task contains steps that tell you how to modify the registry.