Hello, thank you for reaching out to Microsoft Q&A.
May I please know when was the last time you were able to sign in with your Microsoft account successfully?
Because, if you haven't signed in to your account for more than 2 years, your account will be put into an inactive state and will be closed. You cannot even use the 'Account Recovery Form' to unblock your account.
Also, if you have two-step verification turned ON, you cannot use the account recovery form.
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If this is not the case and if your Microsoft account recovery request was not granted or was unsuccessful, please click the attached link for more information: