Forgot Password for Outlook Data File??

Problem

You have forgotten the password to your Outlook Data File which is required to access your email in Outlook.

Solution

Find where the Outlook Data file is located:
Open the Account Settings window:
Office 2010:
Click File (in the top left).
Click the Account Settings button.
In the dropdown that appears click Account Settings.
Office 2007:
Click File (in the top left).
Click Data File Management.
Click the Data Files tab.
In the Location column, you will see the full path to the file. Take note of this.
Download the NirSoft PstPassword zip file.
Extract the files and run the PstPassword.exe file.
Once the program is open, click File (on the top menu), then click Select PST File.
Find the PST file by browsing to the folder where it is located.
The file will appear in the list in the program. Double click on it.
In the list of Properties that appears, you will Password 1, Password 2 and Password 3.
You can use any of these passwords for the Outlook Data file.
Now when you open Outlook and are prompted for a password, enter one of the passwords given by the program.
You can then change your Outlook password.