New Windows 8 notebook, signed in with Microsoft account but emails not syncing however emails sync with added accounts

I recently purchased the ASUS K55a laptop and I signed in with an Hotmail account as a Microsoft account however in the Mail app the email I used to sign in with does not sync. A message at the top right hand corner comes up as "*** Email address is removed for privacy *** is unavailable". I added two other Hotmail accounts and they both have synced perfectly with emails showing up and everything but the 'admin' account is not syncing. I have tried to solve this for hours but to no avail.

I appreciate any response to this, thank you.

Jamie