Managing personal Outlook.com account settings, security, and privacy
Hello Betty,
It seems the new password is being rejected when you try to sign in to Outlook, even though the password change appeared to complete.
Have you tested the new password using a private or Incognito browser window? Also, is this an @outlook.com/@hotmail.com address or an account from another provider, such as Gmail, Yahoo, or your Internet provider
Also please note that f it is from another provider, changing the password in your Microsoft profile may not change the mailbox password. You would need to change or verify the password directly with that email provider, then use that password in Outlook.
Please me know how it goes!