When Outlook is configured to prompt for credentials.Antivirus programs cause Outlook errors.Incorrect Outlook password stored by the Credential Manager.Outlook is configured to prompt for credentials.There are several reasons why Outlook keeps prompting for a password: Why does Outlook keep prompting for password? This blog is dedicated to valid reasons behind the continuous Outlook password prompt issue and the possible solutions for the same. It is not a normal function in Outlook and needs to be resolved to work uninterruptedly with the application. It annoys the user who is involved in some urgent work like drafting or sending an email with crucial information as every time he needs to enter the password for the Outlook profile to continue the ongoing work. One such error that might occur is the problem of Outlook continually prompting for a password. MS Outlook is very easy to use and offers smooth performance, but at times due to errors and bugs, it does fail to work as expected.