I think you can go to the button on the web site when you sign in that says forgot your pass word and they will send it to you in your inbox email. You can tel them when you do that that you wish to change it. Good luck!
Someone Has Changed My Hotmail Secret Password. How Can I Get My Hotmail Password?
You need to set up an alternate email, and have it sent there, and in the meantime, change it again, and make sure it is a tough one. Then write down in a safe place what it is. Hope this helps, good luck.