Where a PST file is depends on three factors:
- Outlook version
- Outlook account type (POP or IMAP, Microsoft 365, Exchange, or Outlook.com)
- Automatic or user-defined storage location
The following locations can be used for a PST file:
- Windows 10: :\user\\application data\local\microsoft\outlook or :\user\\roaming\local\microsoft\outlook.
- Older versions of Windows: :\Documents and Settings\\Local Settings\user\application data\local\microsoft\outlook
The automatic location of PST files from Outlook 2013 or 2016 is usually the Documents/Outlook Files folder. Files from older or upgraded versions of Outlook 2007 or earlier can be found in the hidden folder <drive>:\user\<username>\AppData\Local\Microsoft\Outlook. To really find all backup files, you should display hidden files and folders
The fastest way to find PST files is directly with Outlook. To do this, go to “File”, select “Account Settings” under “Account Settings” and find the location of the Outlook file in question by clicking “Open Data Location”.