Your Microsoft account needs you to sign in again-recent credentials

The 'recent credentials sign in' message popped up in my laptop action centre.
Nothing had been changed.
So I signed into my Ms Account to the credential section.
The email address in the drop down list was not current. The address was changed Jan 2015 and gmail has been in use on the laptop since that date. So my choice was to click on 'nothing applies' and do the next steps.
The sign in required an alternate email address. Fortunately I have one handy. This security routine has a 30 day wait period.
Now I have found the tutorial 37536 illustrating deleting extra accounts but I don't think I can do this because the security section is not available for 30 days. I had no idea this control panel item was available but only the tutorial informed what could be done with this data.
It is amazing that 1.5 yr has gone by and the old email is still in there as a credential. I suppose after 30 days I can delete the hurontel address. I found it odd that the old email address was on the drop down list for a contact. Its a dead end address.
Now that I have made the credential 'visit' can I assume the hurontel address is gone from MS records and I can delete it in the control panel credential section and not have to sign back into the MSAccount credential section because the correct address is listed?

Yes the correct or current info is in the Settings/Accounts/Your email and accounts.
The steps in the tutorial included signing in after deleting a listing. I couldn't see where that was relevant since its a second listing. It looks like I have to voluntarily do the 'sign in' so I can avoid doing that. I'm locked out for 30 days anyway.
Perhaps its time to set up a stand alone user account in that laptop <grin> Too nerve wracking dealing with this MSAccount.