How to Permanently Delete Your Outlook Email Account
Deleting your Outlook email account can be a straightforward process, but it's essential to understand that closing your mailbox, removing an email address, and disconnecting an app are three different actions.
Permanent deletion of an Outlook.com or Hotmail account requires closing the associated Microsoft account. This has far-reaching consequences, including deleting any saved BitLocker recovery keys and affecting other Microsoft services.
To initiate permanent closure, sign in to Microsoft's account closure page, select 'Close your account,' and follow the prompts to verify your identity. Be aware that there is a 30- or 60-day reopening window after deletion.