Trying to retrieve an old gamertag

Ok. I've searched and seen people ask variants of this question. I haven't seen my exact situation yet.

So I've had the same Xbox Live gamertag since January 2003. Around January 2013, my Xbox 360 bit the dust with the ring of death. I never bothered replacing it until very recently. I bought a coworker's Halo 4 edition 360.

So, I got home, used the transfer cable to move all of my profiles, saves, downloads, etc to the new machine. I connected the Kinect. I rarely have time to play anymore, but my kids love Kinect.

So, I tried to get on my Profile, which is an Xbox Live enabled profile. I can't even sign in locally unless I sign in with my Microsoft account first.

I am really not interested in connecting to live again, but I have many saves and games purchased from the XBL Arcade on that account. I purchased probably every Kinect game in the arcade. Now I cannot access them at all.

Originally I signed up with a yahoo email address. I still have the welcome email from January 2003. Somewhere along the way, Microsoft required a Microsoft account for XBL, so I created a Hotmail account. I know the email, but I have no clue for the password. I have tried every method available to reset it. I actually got an email from Microsoft said I have exhausted my options and should create a new account.

Does anyone know if Microsoft Support could simply remove the Xbox Live from my profile? I really only want the games I have purchased, and to continue a few games where I left off.