Sending, receiving, and organizing email in Outlook.com
Thank you for the information.
You mentioned that the account was created 4 years ago and that your last time signing in to the account was the day or a week after the account was created.
But you also mentioned that the account has an active subscription that lasted for 4 years.
If this is not a Microsoft subscription, I'm afraid the account may have already been deleted/closed due to inactivity.
As stated by Microsoft, accounts that have not been signed in or have been locked for more than 2 years will be deleted due to inactivity, and they can no longer be recovered: https://support.microsoft.com/topic/microsoft-account-activity-policy-7c0a9fa7-0982-b7c6-fd72-df852b63699f
However, if this is a Microsoft subscription, the account may not have been deleted yet, as it should fall under the "Exceptions" section of the article I provided above, which states that the account should remain active as long as you have an active Microsoft subscription.
If this is the case, and since the account does not have any linked verification methods for a password reset, the only way to recover the account is through the account recovery web form: https://account.live.com/acsr
You'll need to keep trying until you're verified by Microsoft, and you can do this up to 2 times every 24 hours.
If your Microsoft account recovery request was not granted, please review this link for tips on improving your chances of a successful recovery: https://support.microsoft.com/office/dc56c3e3-dff0-4ed5-8edb-60290eea6b53
Please be advised that Microsoft Support will not be able to grant you access to any accounts.
Thank you for your understanding.
Best regards,
Darhyl