My apologies for the misunderstanding, and thank you for the clarification.
Since it does not have an active 2FA and no access to the security information, I'm afraid 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 account.
Best regards,
Darhyl