i have created a microsoft account with my mail id but i have forgetted my password after somedays .so i created another account with my new mail address .but today i go to windows store for searching some app at that time a window open suddenly and asked my password i gave it but it show wrong .then only i saw that it is signed with my old account so now i cant do anything . so please tell me a suggesttion for changing that old account  with my new microsoft account