When you create a .pst file, you can assign a password to the file. A password improves security and reduces the ability of others to view your data. You can select the Save this password in your password list check box to avoid being prompted for the password each time you open the file.

Use strong passwords that combine uppercase and lowercase letters, numbers, and symbols. Weak passwords don't mix these elements. Strong password: Y6dh!et5. Weak password: House27. Passwords should be 8 or more characters in length. A pass phrase that uses 14 or more characters is better. For more information, see Help protect your personal information with strong passwords.

It is critical that you remember your password. If you forget your password, Microsoft cannot retrieve it. Store the passwords that you write down in a secure place away from the information that they help protect.

Note If your Windows user account is not password-protected, or other people have access to your Windows user account, do not use the Save this password in your password list option.

By default, if you do not type a name in the Name text box, the Personal Folders file (.pst) is named Personal Folders in the Outlook Navigation Pane. This might be confusing if you open several .pst files, all with the same name. We recommend that you type a name that is meaningful to you.

A password is not required for a .pst file but helps to provide better protection for your information. Type the same password into both the Password and Verify Password text boxes. For security, dots appear as you type the password.

If you use a password for this .pst file, you can select this check box to prevent you from being required to type the password each time you open the .pst file in Microsoft Outlook. Even if the .pst file is moved to another Windows profile or another computer, a password prompt still appears.

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