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How to Find Outlook Data Files

Locate PST and OST files used by classic Outlook on Windows.

Quick Answer

Use Account Settings → Data Files to see configured files and locations.

Step by Step

  1. Open the relevant email account or application.
  2. Use Account Settings → Data Files to see configured files and locations.
  3. Review the result carefully before making any permanent deletion, forwarding, or account change.
  4. Confirm the change worked from the mailbox or settings page.

If That Doesn't Work

  • Menu names can differ between web, desktop, mobile, classic, and newer versions of an email application.
  • For business or managed accounts, administrator policies can restrict some settings.