Use MailsDaddy PST Password Remover utility that helps the users to reset the PST password without affecting its properties and unlock the PST file to reuse in Outlook 2019, 2016, etc. Remove the PST Password in a single click and change the password in a few clicks. Outlook data file (pst) is an important file for the user, therefore, the file should be in the protection of the password. Password protection is helpful for the user until they remember the password, once the user forgot the password, the PST file becomes inaccessible or unusable for the users.

For more detail: https://www.mailsdaddy.com/pst-password-remover/