If you have Comcast, there is a way to delete an old Comcast account. This process is called “deleting an account.” To delete an account, go to the Comcast website and click on the “accounts” tab. Then, click on the “delete an account” link. When you click on the “delete an account” link, you will be asked to provide your name and email address. You will also be asked to confirm your deletion by clicking on the “confirm deletion” button. Once you have clicked on the “confirm deletion” button, your old Comcast account will be deleted and you will not be able to use it anymore.