Managing personal Outlook.com account settings, security, and privacy
Hi Arthur,
Welcome to Microsoft Community forum.
I understand that you are having issues signing in your account. It also appears that you are getting an error messages when doing so.
It will help if you can provide us with your affected email address. This will allow us to investigate the issue in our end and provide an appropriate solution.
Note: For security purposes, please post your email account on the private message area I have provided above your post. You also need to login this Forum to view the private message link.
We look forward for your response.
Thank you,
Cherry