Question about Outlook Express

I posted this issue a few days ago. I got some replies, but they did not directly answer my question/issue. Then a site moderator locked the discussion and stated s/he would email me directly the answer within 24 hours. That did not happen. So I am asking again. I have read the help pages. So please do not merely repeat info from help pages. I have a Hotmail address (which MS has now converted to an Outlook account, although I still sign-in with my Hotmail address). Several months ago, I wanted to make a new primary alias and delete my original primary alias (the log-in, sign-in, email address I made when I opened the account, back in the years before aliases were available). A few months ago, it was not possible to delete the primary alias (or at least not the original email address that the account began with). Now the help pages seem to imply that we can change the primary alias and then even delete the former primary alias. If so, does that totally disassociate the deleted former primary alias (original email address used to create the account) from the account, so that all emails sent to that former primary (once deleted) never reach the account? Someone replied and asked why I want to delete my former primary alias, after I change the primary. That really isn't relevant to anyone else. I have my reasons. I want a direct answer from someone who knows about this issue, perhaps from someone who has been around for at least a year. When I first inquired a few months ago, an MS tech suggested I should just create a new email account, because at that time it was not possible to delete the original email address/alias that I used to originally create the current account. Is it really possible to do this now? (If so, apparently the email account is based on name and personal information and password, and not based mainly on the original email address that created the account.) Thanks in advance to anyone who can directly answer my questions.