Hi there,
I'm Cherrelyn, and I’m here to help.
If you can’t log in to either your original ******@hotmail.com or the @outlook.com alias, it’s possible the recovery setup or alias linking caused a conflict. Please try signing in with your original address and click “Forgot password” to begin account recovery. Use any recovery email or phone linked previously. If both fail, submit the account recovery form with as much accurate info as possible.
I hope this will help and if you have any question please don't hesitate to reply to this thread.
Warm regards,
Cherrelyn