In order to reset your Norton Account password, go to the password reset page:
Then, enter your email address that you used to purchase your Norton software and open your Norton Account. Click onto the Continue button.
You will receive an email from Norton that will have your password reset instructions.
Here is a video that describes the whole Norton password reset process:
A Security Precaution Note
A password reset email comes from firstname.lastname@example.org. If you ever receive an email asking you to do anything in regards of your password, always check the email address it was sent from, and also check links that are within the email you received. Spammers send emails in order to retrieve passwords from people so they can misuse their credentials.
In the case you have forgotten the email that is associated with your Norton Account, contact Norton Support in order to retrieve your Norton Account login credentials.