Ou trouve t'on le mot de passe nécessaire à cette installation?
Flash player is FREE and does not require a password Adobe Flash Player Install for all versions
When you are installing or updating on a Mac, that is your Mac asking you to prove that you have permission by asking for your COMPUTER password, not your Adobe password https://forums.adobe.com/thread/2139902
Flash Player does not require any password to download. You can get the same from Adobe Flash Player Install for all versions. For installation, your system's username and password are needed. Refer to