Halo MCC Stuck on Win Live log in

Hi guys, im really angry… i tried to sign in with an old account and failed doing it right, now the launcher stuck on its screen and it dont allow me to log in into another account, how can i reset the log in screen? or the game setting for this? I cant play my game ;(((( hope u can help me… sorry about my bad english… thank u guys…

same problem my first account back whgen xbox live came out was what i tried to use and the email that it was under is dead its at the protect your account screen and wants me to verifiy but i cannot because the email is no no longer active you can’t back out or restart the game you can’t restart your comp cause it just pulls it right back up and the is no option to try another account