>> What do you mean with "email ID"?
>> Do you mean you changed your Windows Live ID?
YES
>> What do you mean with "can not access X"?
>> Do you mean you can not sign in anymore
>> with account X in Messenger or
http://account.live.com/?
IN MESSENGER
>> You can only change your Windows Live ID
>> (and keep your contacts) from
>>
https://account.live.com/summarypage.aspx
MOST PROBABLY. NOT SURE.
THANKS - I'LL WAIT A BIT MORE.