Code for Signin on my Account goes to unknown E-Mail

If you do not have a way to verify the delete, contact support and dispute the case. They should send it back to the investigation team and fix that up. Would take anywhere between a few hours to 3 days, like the original investigation.

Hello,

I'm assuming the person that took your account added alternative e-mails so he could get back in if need be? If so, please visit this page
here and remove all of the security proofs that are not your own.

If your talking about them having changed your e-mail address for your login then you would want to take a look
here.

More information on security proofs and what they do can be found
here.

If you can sign in to http://accounts.live.com/ the e-mail address & password you entered is valid. Next, go to
live.xbox.com/.../Signin & try signing in with the same information. If you're prompted to create a new gamer-tag, the Microsoft account you entered is not currently associated with an X-Box
Live account. Check your e-mail accounts for messages about your X-Box Live membership. This may help to determine which e-mail account is associated with your X-Box Live membership. If you know your Microsoft account, but can't remember your password, see

support.xbox.com/.../forgot-microsoft-account-password

Change the e-mail associated with the silver account ... (to something new ,NOT the e-mail for your main account) then apply the 2 day code.

I need a code from my old e-mail to verify my account. To do so I have to send an e-mail to my old e-mail with the code or I can update my security info. But if I change to a new mail and phone number etc. It wont save my new information because my computer
is not a trusted computer (with Microsoft essentials and Internet Explorer) so I dunno what to do