Hello, thank you for reaching out to Microsoft Q&A.
Could you please clarify which email address you used for your Microsoft account earlier?
(e.g. @hotmail.com or @live.com or @msn.com)
Also, where are you currently seeing the Outlook.com address? For example, are you seeing it on the sign-in screen, in an app, or when signing in to Outlook.com on the web?
Is the Outlook.com address showing as the primary alias of your account, or is it the only email you see now?
https://account.live.com/names/manage