Devo scaricare Creative Cloud e mi chiede il nome utente e la password, ma quando inserisco la password me la rifiuta. Cosa devo fare?

confirm that your account is current (and that the adobe id used in the next step is the correct one) by logging in here and checking your subscription status, https://www.adobe.com/account.html

then, if it is current, sign out and then back in to your cc desktop application using the same adobe id used with the above link:  http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html