More than One account in outlook and separate password For each Account

Password on For Outlook Account To set a password on your file *.pst PST stands for “Personal STore” – as in your personal mail storage Outlook 2003 and Outlook 2007 File-> Data File Management…-> double click on your data file-> button: Change Password… Outlook 2010 and Outlook 2013 File-> Account Settings-> Account Settings…-> tab Data Files-> double click on your data file-> button: Change Password… Leave the “Old password” field empty when no password has been set yet.