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Stampante, driver non disponibile in Windows 11: come risolvere | IlSoftware.it

Stampante, driver non disponibile in Windows 11: come risolvere

In Windows 11, la modalità di stampa protetta impedisce l'uso di driver non certificati, per ragioni di sicurezza. Questo causa il messaggio Driver non disponibile per le stampanti più vecchie non compatibili Mopria.

Con l’introduzione di Windows 11, Microsoft ha rivoluzionato la finestra per la gestione di stampanti e scanner: adesso è relegata a ruolo di “sottosezione” di Bluetooth e dispositivi, nelle impostazioni del sistema operativo. Tanti utenti, affezionati alle loro vecchie stampanti, segnalano l’impossibilità di utilizzarle per via della comparsa del messaggio Driver non disponibile. Cosa significa e come è possibile risolvere il problema?

Come risolvere il messaggio Driver non disponibile in Windows 11: impedisce l’uso della stampante

Quando compare il messaggio Driver non disponibile, di solito si pensa a un problema relativo ai file che compongono i driver della stampante. Eppure, in Windows 11, la loro rimozione e successiva reinstallazione non sembra risolvere il problema.

Driver on disponibile stampante Windows 11

Il fatto è che con la pubblicazione di Windows 11 24H2, la versione del sistema operativo che Microsoft ha distribuito a partire da ottobre 2024, Windows 11 abbraccia la Modalità stampa protetta. Si tratta, come già messo in evidenza in passato, di una caratteristica volta a scongiurare l’utilizzo dei driver delle stampanti sviluppati da terze parti.

I driver di stampa sono spesso fonte di vulnerabilità: possono contenere codice non sicuro, sfruttabile per lanciare attacchi informatici. La modalità stampa protetta di Windows 11 (Windows Protected Print, in inglese) elimina l’uso di questi driver, riducendo così i rischi associati.

In passato, attacchi come PrintNightmare hanno sfruttato le vulnerabilità nello spooler della stampante per compromettere i sistemi Windows. La modalità protetta aiuta a mitigare tali rischi limitando i privilegi del print spooler e utilizzando solo stampanti certificate Mopria.

Le stampanti certificate Mopria sono dispositivi che hanno superato una procedura di certificazione stabilita dalla Mopria Alliance. Le stampanti possono essere facilmente rilevate e utilizzate utilizzando software “standardizzato”, che consente la connessione senza necessità di configurazioni aggiuntive (in particolare, non sono necessari i driver tradizionali). I prodotti certificati includono sia stampanti tradizionali sia multifunzioni (MFP), garantendo un’esperienza semplice e uniforme per gli utenti su diverse piattaforme.

Potete consultare la lista dei prodotti certificati Mopria: la presenza nell’elenco sblocca automaticamente la possibilità di abilitare la modalità di stampa protetta in Windows 11.

Cosa fare se non si può utilizzare la stampante

Quando la modalità stampa protetta è abilitata in Windows 11, tutti i driver delle stampanti che non sono certificate Mopria sono automaticamente disattivati. Soprattutto con le stampanti  multifunzione, può quindi accadere che la finestra Stampanti e scanner mostri il messaggio Driver non disponibile sotto al nome della vecchia stampante.

Cliccando sul nome della stampante potrebbero comparire i riferimenti per la configurazione dello scanner mentre invece gli strumenti per la verifica del funzionamento dello stampante e per la sua configurazione risultano del tutto assenti.

Finestra configurazione stampante modalità protetta Windows 11

Per tornare a utilizzare la vecchia stampante, basta disattivare la modalità protetta digitando Stampanti e scanner nella casella di ricerca di Windows 11 quindi cliccando sul pulsante Disattiva a destra della voce Modalità stampa protetta di Windows. Confermare l’operazione cliccando su Sì.

Disattivazione modalità stampa protetta Windows

Provate a premere la combinazione di tasti Windows+R, a digitare quanto segue quindi a selezionare la scheda Driver:

rundll32 printui.dll,PrintUIEntryDPIAware /s

Con la modalità di stampa protetta attiva, i driver delle vecchie stampanti risultano indisponibili nella scheda Driver. Viceversa, disattivando la stessa modalità di stampa protetta, i driver a supporto delle stampanti non compatibili Mopria tornano a figurare nell’elenco.

Driver vecchia stampante Windows 11 non compatibile Mopria

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