Next to the "Log in" button under the enter login andpassword, usually there is a button "forgot?" or "forgot password?".The most common scenario after you click this button to restore the password to the e-mail address provided during registration. You will be prompted to enter the e-mail to which you registered your account on this website and then confirm your password reset click "OK" or "Restore". After that e-mail will receive an email with a link, clicking on which, you will be prompted to enter a new password, usually twice to confirm the correct input.
Some resources propose to correctly answer a security question that you choose yourself from the available list of questions at check-in. Usually these are questions like "mother's Maiden name", "passport Number", "Last 6 digits of INN, "a Nickname first pet".
Another option for password recovery, which is increasingly rare – it is a requirement of the site to specify additional e-mail address that was entered when creating your account. This e-mail will receive your pair of login andpassword, with the password usually remains the old, and to change it you can in the account settings after logging in.
If you don't remember any additional e-mail or password from the primary e-mail or secret answer, try to contact support via the feedback form, usually located in the "Contacts" section. Usually such letters of support responds within 3-5 days.