Managing personal Outlook.com account settings, security, and privacy
Hello. Changing the main alias doesn’t update where Microsoft sends your security codes. You’ll need to manually change the verification destination.
Do this:
- Go to https://account.live.com/proofs/manage and sign in.
- Under “Security info,” check if the old email still appears. If it does, select “Remove.”
- Add your new email address or a phone number, then mark it as the default verification option.
- Visit https://account.live.com/SignInPreferences and make sure the new email is selected for sign-in.
Sign out everywhere, wait about an hour, then sign back in, codes should now go to the updated address.