Managing personal Outlook.com account settings, security, and privacy
Hello,
Do you have any other recovery methods, such as another recovery email address or Phone number, to verify your identity?
If yes, you can sign in to the Security Settings page of your Personal Microsoft Account here -
https://account.live.com/proofs/Manage
- Make sure you have at least three verification methods to confirm your identity.
- Then, remove the email address you want removed.
If you no longer have any other recovery email address to Verify Your Identity:
- On the Verify Your Identity screen, select "I don't have any of these" and follow the prompts to replace your Security information.
Note - If you remove all of your previous security information and replace it with something new, your account will be put into a restricted state for 30 days.