Microsoft just sent my new security verification code to an old, alternate Hotmail account, which I haven't accessed in a very long time. I will be locked out of my Outlook account after my current session, if I don't enter the code now. How do I access the alternate Hotmail account to get my code?

I thought the old Hotmail accounts were non-existent now. I used to be able to access all of my husband's and my own email accounts from one list in Hotmail, when I clicked on my name, in the upper right hand corner, because we had them all linked together. I got a notice some time ago that this feature was not available in the new Outlook and I can't find a way to access our Hotmail accounts.

I won't be able to access my email account after today! Please help!