Change the password for an Outlook Data File (.pst)

A password can be set for an Outlook Data File (.pst) to help prevent unintended intrusion by other people who share your computer, such as members of your family. If you set a password, you must enter it every time that the data file is opened — for example, when Outlook starts or when you open the data file in Outlook.

  1. Click the File tab.

  2. Click Account Settings, and then click Account Settings.

    Account Settings command in the Baskstage view

  3. On the Data Files tab, click the Outlook Data File (.pst) for which you want to change the password, and then click Settings.

  4. Click Change Password.

    Note:  The Change Password button doesn’t appear if you are using a Microsoft Exchange Server account. Your network password is used to access your Exchange account and information.

  5. In the Change Password dialog box, type the existing password in the Old password box.

  6. In the New password and Verify password boxes, type the new password. The password can be up to 15 characters and is case-sensitive.

  7. Click OK to set the password.

    Important:  If you forget your password, Microsoft can’t retrieve it. There is no password recovery option.

Security Note:  For a better way to restrict access to your data, use a password-protected Windows user account for each person who uses the computer. For more information, see Windows Help and Support.

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