There are a number of configurations you can use when you set up an email account in Microsoft’s Outlook email client. For example, you can enable the storage of your username and password so that the data is automatically entered upon software launch or when additional security is needed – such as when sending or receiving mail. When this option is not properly configured – or if your Outlook profile settings are faulty – you may find that you are repeatedly prompted to manually enter your password information. Writer Bio

Why Does Outlook Ask for a Username   Password Every Time I Open It  - 73