Instructions
Visit the PlayStation Network website on your computer (see Resources).
Click "Sign in" at the top of the page, and then click "Forgot Password."
Enter your user name, which is the email address you created the account with, as well as your date of birth. Click "Submit."
Click "Reset Using E-mail" or "Reset Using Security Question." If you wish to have a password reset link emailed to you, click "Reset Using E-mail" followed by "Continue." If you want to gain access to the password reset by answering a security question you entered when you created the account, click "Reset Using Security Question."
Click the link in your email inbox from the PlayStation Network or answer your security question. A new page will appear. Enter your new password in the first text box, and then enter it again in the second text box. Click "Continue." A message on the screen will confirm the changes. Click "Continue." The sign-in page will appear. Either sign into your PlayStation Network account or close the page.