Below are steps on how you can remove a secondary account using your MSN Client Software

1.     Sign in to MSN using the primary email account.

2.     Click on Help & Settings menu, now click Accounts & Billing.

3.     Click Remove member accounts.

4.     Click the Remove link next to the account that you want to remove.

5.     Click Save Changes, and then click OK to finish. Click Done to go back to the main menu.

Note: The account is not deleted. The account is only disassociated from the primary member's account.

Below are steps on how to remove secondary accounts from Member Center:

1.     Open a new Internet Explorer browser, go to https://membercenter.msn.com/Default.aspx

2.     Sign in to MSN using the primary email account.

3.     Click on Manage Users from the options available on the left side of the page

4.     Under change member status select the e-mail address you would like to remove

5.     Click Remove this member, on the confirmation page click on Yes

Note: The account is not deleted. The account is only disassociated from the primary member's account.