Managing personal Outlook.com account settings, security, and privacy
Hi, I'm John!
To help narrow down the issue:
Do you remember receiving any security alert before this happened?
If not, when was the last time you were able to access that Outlook account? I ask because Microsoft may permanently close accounts that haven’t been used for over 2 years.
Also, please try searching for the account using these steps from Microsoft: https://support.microsoft.com/account-billing/forgotten-your-microsoft-account-username-b2049472-3b8f-27d3-61c6-67a668453f4c Click on "Search" and follow the instructions provided.
If you receive any error messages, such as “account doesn’t exist” or anything else, please let me know.
About trying to recreate the account:
If an old @hotmail.com, @outlook.com, or @live.com address is closed due to hacking, 2 years inactivity, or getting deleted as alias, it cannot be recreated again for security reasons.
Click "Add comment" to let me know.
Regards,
John J.D.