the Sign at the top of the iTunes programıda right after clicking on the Login button, the Apple ID section of-current, enter the address of your account. Then click on the "Forgot Password" option. In the window that opens, just click on the Send e-mail "option in case will be sent to your e-mail address validation mail. You can define a new password by clicking on the link specified Mailde. If you do not remember your e-mail address, you will need to open a new account.