La seule façon to do this serait to completely and entirely stop using Windows Explorer, and use a custom shell to replace explorer completely. This means vous pourriez no longer have the usual menu Démarrer, explorer windows, etc, and would have to rely entirely on some other piece of logiciel for browsing your fichier système. Some people do this, and il y a replacements disponible, so si vous really want to completely eliminate the windows taskbar, find and use one duse of your choice. Il y a déjà a SuperUser question discussing the various options.
In order to completely replace explorer, and have your replacement be the par défaut shell which opens up when you log in, créez un REG_SZ valeur called Shell in [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] using le registre editor. Cela va completely replace explorer for your compte, making it unnecessary to use any taskbar hiding/killing techniques.