Before you can recover the password to your Yandex Disk, you should make sure that the password was entered incorrectly. As a rule, if a wrong input of your username or password this message appears "the Wrong pair of login and password. Login failed." Perhaps incorrectly entered the username, not the password. For this you need to check whether the desired keyboard layout is not included if the Caps Lock key and the correct name of your login (or email) you enter. It is also necessary to check and when entering the password.
Also the reason for the failed authorization may be incorrect setting of cookies in your browser. Cookies are text files where the browser saves the data received from the server. When browsing to various websites, the server can read the information that is in cookies. Because of the fact that cookies are correctly stored information, and can cause problems with authorization on Yandex Disk. So you need these files to delete.
Popular browsers are many, but let's take for example Google Chrome. So, to delete your cookies in this browser, you press the button in the upper right corner of the browser (the icon with three horizontal lines). In the appeared menu, select "Delete browsing data". In a new window "clear history" to select from a list the period for which you want to delete – for example, "For all time". Then you need to tick "Clear cookies and other data..." and make sure the rest of the tick removed. After pressing the button "Clear history" will be clearing cookies, and you can try again to log in to Yandex Disk.
If you go to your account Yandex is still not obtained, we can proceed to password recovery. To do this, go to the special page for password recovery. Then you will need to enter your username or e-mail right to recruit the characters from the image and click "Next." The password recovery method depends on what information was provided at registration and on the page "Personal information".
If you have previously set your security question after a correct answer by email will receive an email with a link which you can use to set a new password. If you specify an additional address, then the email to reset your password will be sent to this e-mail. In case when registration was specified and confirmed mobile phone number, you will receive an sms-message with the new password.