Set a password to help protect your Outlook information

A password can be set for an Outlook Data File (.pst) (Outlook Data File (.pst): Data file that saves your messages and other items on your computer. You can assign a .pst file to be the default delivery location for email messages. You can use a .pst to organize and back up items for safekeeping.) to help prevent unintentional intrusion by other people who share your computer, such as members of your family. When a password is used, a password prompt appears when Outlook starts or when the file is first opened within an Outlook session.

Security   Outlook Data File (.pst) passwords are not intended to provide security against intentional malicious attempted to access your information. For a better way to restrict access to your data, create a password-protected Windows user account for person who uses the computer. For more information, see Windows Help and Support.

After you set a password on an Outlook Data File (.pst), it is a good practice to change the password periodically.

  1. Click the File tab.
  2. Click Account Settings, and then click Account Settings.

Account Settings in the Backstage view

  1. On the Data Files tab, click the Outlook Data File (.pst) for which you want to create a password, and then click Settings.
  2. Click Change password.

 Note    The Change Password button does not appear if you are using an Exchange account. Your network password is used to access your Exchange account and information.

  1. In the Change Password dialog box, in the New password and Verify password boxes, type the new password. The password can be up to 15 characters and is case-sensitive.

Change Password dialog box

ShowLearn more about password best practices

Use strong passwords that include and mix of a minimum of eight uppercase and lowercase letters, numbers, and symbols such as Y6dh!et5. A longer and complex password helps improve password protection.

 Important    It is critical that you remember your password. If you forget your password, Microsoft cannot retrieve it. Any password that you write down should be kept in a secure location, away from the information that it helps protect.

  1. Click OK to set the password.


 Notes 

  • There is no logon password for the Outlook program itself; the password you set with the instructions here protects only the Outlook Data File (.pst) that you use in Outlook.
  • Your computer can remember your password so that you don’t have to type it in each time that you pen the Outlook Data File (.pst). If your Microsoft Windows user account is password protected, and no other person has access to your Windows user account, you can select the Save this password in your password list check box after you verify your new password.
  • When you set an Outlook Data File (.pst) password, it is set for the entire file. You cannot set a password for individual folders within the Outlook Data File (.pst).

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Applies to:
Outlook 2010