The next time, when it tries to open the password-protected PST, it cannot recall the password. As a result, all the e-mails and other PST items remain inaccessible to the user.

Solution

Following are the standard steps, if applied in sequence, can help a user to recover lost or forgotten PST password:

Step 1: Take your time and try to recollect the password. Most of the users keep a definite set of passwords for their files. Try to unlock the file using the most frequent passwords you use.

Step 2: Download and install pst19upg.exe utility from the Internet and use it to upgrade your PST. Ideally, this is a Microsoft provided program to update the file but the resultant file it generates is free from password protection.

Step 3: Use a third-party application to recover Lost PST Password. These Password Recovery utilities provide an easily operable interface. Such software usually generate a series of PST usable passwords. sfp2007.