Correggi Avast che non aggiorna le definizioni dei virus

Avast is one of the most commonly used antivirus software available on the internet. It is known for the best protection service for all devices connected to the internet. Since it is free-to-use software, many people rely on this software for antivirus protection. Yet, like all apps and games, Avast is not without errors and problems. Many users report Avast not updating virus definitions issue which causes a major security breach on your PC. If you are also facing the same problem on your device, the troubleshooting methods discussed in this guide will help you fix the issue.

How to Fix Avast Not Updating Virus Definitions

Here are a few common reasons that cause Avast antivirus not updating virus definitions issues on your computer. Analyze them deeper so you will get an idea of how to resolve the same.

• Any temporary glitches in your PC that are preventing Avast from updating the software and its components.
• You are running Avast with administrative rights. This prevents a few features from being accessed on your computer.
• Outdated Avast will cause the discussed problem.
• Few essential services like the aswbIDSAgent are disabled on your computer.
• The Avast installed on your PC is corrupt or misconfigured.
• Your PC is infected with malware or virus.
• Some background tasks are interfering with your program.
• Sistema operativo Windows obsoleto.
• Firewall is preventing Avast to open.
• Corrupt or incompatible installation files of Avast.
• Inappropriate date and time settings on your computer.

Now, move ahead to the next section to find the effective troubleshooting methods to fix Avast virus definitions won’t update issue.

Here are some effective troubleshooting methods that will help you fix Avast not updating virus definitions issue on your Windows 10 computer. Read them carefully before you implement them.

Metodo 1: Riavvia il PC

Before trying all the listed advanced troubleshooting methods, you are advised to reboot your computer. When you restart your computer, the technical glitches that cause any challenging layouts will be resolved thereby helping you to fix Avast not updating virus definitions issue. You can also fermare the PC using the Power options and turn it on again after some time.

1. Navigare verso menu di avvio.

2. Ora seleziona icona di alimentazione nell'angolo inferiore sinistro dello schermo.

3. Diverse opzioni come Pernottamento, fermaree Ricomincia sarà mostrato. Qui, clicca su Ricomincia.

Once you have restarted your computer, check if you can open Avast without any issues.

Method 2: Run Avast with Admin Privilege

You need administrative privileges to access a few features and services in Avast. If you do not have the required administrative rights, you might face Avast antivirus not updating virus definitions issue. However, few users have suggested that the problem can be resolved when running the program as an administrator.

1. Fare clic con il tasto destro su Avast Icona antivirus sul desktop.

2. Ora, clicca su Properties.

3. Nella finestra Proprietà, passare a Compatibilità scheda.

4. Here, check the box Esegui questo programma come amministratore.

5. Infine, fai clic su Applica> OK per salvare le modifiche.

Now, relaunch the program to see if Avast functions now without any problems.

Leggi anche: Correzione della definizione del virus non riuscita in Avast Antivirus

Metodo 3: modificare le impostazioni di data e ora

Incorrect date and time settings in your computer may contribute to Avast not updating virus definitions issue on Windows PC. To sync the date, region, and time settings in your Windows 10 computer follow the below-listed instructions.

1. premi il Tasti Windows + I. insieme per aprire Impostazioni di Windows.

2. Ora seleziona Ora e lingua impostazione.

3. Next, in Appuntamento scheda, assicurarsi dei due valori Imposta l'ora automaticamente ed Imposta automaticamente il fuso orario le opzioni sono attivate.

4. Quindi fare clic su Sincronizza ora as highlighted above. Check if the Virus Definitions Update Failed issue is resolved or not.

Method 4: Update Avast Antivirus

If there are any bugs within Avast, you can fix them by updating the app. As mentioned earlier, Avast gets regular updates to fix all the errors and bugs. When these bugs and errors come to the developer’s eye, they release updates to fix them completely. Follow the below-mentioned steps to update Avast app to fix Avast antivirus not updating virus definitions issue.

1. Premi il Tasto Windows e tipo Avast Free Antivirus. Fare clic su Apri dal risultato della ricerca.

2. Vai a Menu icon from the top right corner of the Avast user interface.

3. Quindi, selezionare Impostazioni profilo dalla lista.

4. Ora passa a Aggiornanento scheda e fare clic su Ricerca aggiornamenti button. Make sure you get the following messages.

• Le definizioni dei virus sono aggiornate
• Avast Free Antivirus is up to date

5. Once you have updated it, restart Avast and check if the issue has been solved.

Leggi anche: Come risolvere l'aggiornamento Avast bloccato su Windows 10

Metodo 5: chiudere i processi in background

If you are still worried about Avast not updating virus definitions issue, it can be resolved by closing all the background tasks running on your PC. Several background tasks on your PC will interfere with Avast, thereby preventing the app from being opened. Hence, close all the background tasks on your PC by following our guide How to End Task in Windows 10, and proceed as instructed.

Once you have closed all the background processes, check if you were able to work with Avast on your computer without any issues.

Method 6: Enable aswbIDSAgent Service Settings

Several users have reported that the bug causing Avast virus definitions won’t update issue can be fixed by making some changes in the aswbIDSAgent Service. This method is very easy and you can implement the same by following the below-mentioned steps.

1. premi il Tasto Windows, Il tipo di Servizie fare clic su Eseguire come amministratore.

2. Ora scorri verso il basso e fai doppio clic su aswbIDSAgent servizio.

3. Now, in the new pop-up window, change tipo di avvio to Automatic, as depicted.

Nota: Se l' stato del servizio is Arrestato, quindi fare clic su Inizio pulsante. Se la stato del servizio is corsa, clicca su Fermare e riavviarlo.

4. When you start the service, you may face a 1079 error (or something similar to that). In this case, switch to the Accedi scheda, fare clic su Questo profilo pulsante di opzione e selezionare il Scopri la nostra gamma di prodotti opzione.

5. Nel Immettere il nome dell'oggetto da selezionare field, type the username of your account.

6. Quindi fare clic su Controlla i nomi option to authenticate the object name.

7. Ora, clicca su OK to save the changes and if you are prompted, type in your administrator account.

8. Fare clic su Applica> OK to save the changes and check if you were able to open Avast without any issues.

Leggi anche: Come rimuovere Avast da Windows 10

Metodo 7: eseguire la scansione antivirus

There are few circumstances where a virus or malware in your computer is taking over the control of Avast. Hence, you must check whether the third-party harmful viruses are interfering with Avast, causing Avast not updating virus definitions issue.

Several Microsoft experts suggest that scanning a PC will help you maintain your computer threat free. If there are any viruses or malware intrusions on your PC, you cannot use external and internal hardware devices.

Pertanto, ti consigliamo di scansionare il tuo computer come indicato nella nostra guida Come faccio a eseguire una scansione antivirus sul mio computer?

Inoltre, se desideri rimuovere malware dal tuo computer, consulta la nostra guida Come rimuovere malware dal tuo PC in Windows 10.

Metodo 8: aggiorna Windows

Also, if there are any bugs in your PC, they can only be fixed after a Windows update. Microsoft releases regular updates to fix all these bugs thereby troubleshooting Avast not updating virus definitions issues.

Quindi, assicurati di aver aggiornato il tuo sistema operativo Windows e se ci sono aggiornamenti in sospeso, usa la nostra guida Come scaricare e installare l'ultimo aggiornamento di Windows 10

After updating your Windows Operating System, check whether you can access your Avast without any issues.

Metodo 9: modifica le impostazioni di Windows Defender Firewall

Still, if you cannot fix Avast not updating virus definitions issue, this may be due to an over-reactive or over-protective firewall suite in your Windows 10 computer. This prevents the connection link between the app launcher and the server. So, to fix this problem, you can whitelist Avast in your Firewall settings or disable the problem temporarily.

Option I: Whitelist Avast Antivirus

To allow Avast in your Windows Defender Firewall, follow our guide Allow or Block Apps through the Windows Firewall and implement the steps as instructed.

Opzione II: disabilita il firewall (non consigliato)

You can also disable Windows Defender Firewall, and to do so, check our guide on How to Disable Windows 10 Firewall and follow as instructed.

Opzione III: crea una nuova regola nel firewall

1. Vai a Menu di ricerca e tipo Windows Defender Firewall con sicurezza avanzata. Quindi fare clic su Eseguire come amministratore.

2. Ora, nel riquadro di sinistra, fai clic su Regole d'ingresso come raffigurato.

3. Quindi, nel riquadro di destra, fare clic su Nuova regola… come mostrato.

4. Ora assicurati di selezionare il file Programma opzione sotto Che tipo di regola vorresti creare? menu e fare clic su Avanti> come mostrato.

5. Quindi, fare clic su Sfoglia ... pulsante corrispondente a Questo percorso del programma: come mostrato.

6. Quindi, vai a C:Program Files (x86)Avast percorso e fare doppio clic su flessibile. file. Then, click on Apri pulsante.

Nota: This location may vary according to the directory from which you have installed Avast. Browser the location accordingly.

7. Quindi fare clic su Succ.> nel Creazione guidata nuova regola in entrata finestra come mostrato.

8. Ora seleziona il pulsante di opzione accanto a Consenti la connessione e cliccare su Succ.> come raffigurato.

9. Assicurarsi Dominio, privato e pubblico le caselle sono selezionate e fare clic su Succ.> come mostrato.

10. Infine, aggiungi un nome alla nuova regola e fai clic su Fine.

All done! Check if you can open Avast without any issues or not.

Method 10: Repair Avast Antivirus

If the above-listed solutions do not help you fix Avast antivirus not updating virus definitions issue, you can try repairing the app to fix all the harmful bugs within the app. This also fixes the corrupt installation files and even if this method fails to work, you can reinstall the app as instructed in the next method.

Option 1: Through Avast Antivirus Settings

1. Lanciare Avast Antivirus and navigate to Menu > Impostazioni come hai fatto prima.

2. Successivamente, passa a Troubleshooting scheda.

3. Qui fare clic su App di riparazione in the right pane. Wait until the repairing process is complete. This might take a while.

Nota: Avoid closing any windows or tabs during the repair process.

4. Once the repair is complete, reboot your PC. Check if the Avast virus definitions won’t update issue is fixed or not.

Option 2: Through Add or Remove Programs

1. Tipo Aggiungi o rimuovi programmi nel  Ricerca di Windows box. Launch it from the search result, as shown.

2. in Cerca in questo elenco bar, tipo Avast.

3. Quindi fare clic su Avast e poi, modificare.

Nota: The below image is depicted for reference. Follow the same for Avast.

4. Fare clic su Riparazione in the Avast pop-up window and follow the on-screen instructions.

Wait for it to be repaired. Restart your Windows 10 PC and check if the issue is resolved or not.

Leggi anche: Correggi l'errore di sospensione SearchUI.exe su Windows 10

Method 11: Reset Avast Settings

You can reset Avast settings on your Windows 10 PC to fix Avast not updating virus definitions issue. This will resolve all the incorrect configuration settings without the app, helping you to resolve the problem at ease.

Nota: Resetting Avast will reset all the options and features of the app to their default values. You have to re-configure these options again once you open the app after the reset.

1. Lanciare Avast e cliccare su Menu opzione nell'angolo in alto a destra dello schermo.

2. Ora seleziona Impostazioni profilo dall'elenco a discesa.

3. Quindi, vai a Generale tab and then select click on Troubleshooting opzione.

4. Quindi, selezionare Ripristina al valore predefinito pulsante.

5. If you are prompted, click on Sì and proceed with the on-screen instructions. Check if you have fixed Avast antivirus not updating virus definitions issue or not.

Method 12: Reinstall Avast in Safe Mode

If repairing Avast, still does not solve Avast virus definitions won’t update issue, you may have to reinstall the app in safe mode to fix the same. When you clean install Avast, the faulty application along with cache files, and corrupt registries will be fixed.

Visita Avast official uninstaller site, and then, click on avastclear.exe to get the Avast Uninstall Utility, as shown below.

Now you have to boot Windows in Safe Mode by following steps:

1. Tipo Windows configurazione di sistema in the Windows search bar. Then, click on Configurazione del sistema per lanciarlo.

2. Passare al stivale tab in the window that opens.

3. Quindi selezionare Avvio sicuro under Boot options and then, click on OK, come mostrato di seguito.

4. Restart the computer and the computer will boot into Safe Mode.

5. Once Windows 10 is open in Safe Mode, click on downloaded Avast Uninstall Utility precedentemente scaricato.

6. In the uninstall utility window, ensure that the correct folder containing the corrupt Avast program is selected.

7. Ora, clicca su Disinstallare.

8. After Avast has been uninstalled, Ricomincia Windows in Modalità normale.

9. Visit this official Avast link e quindi fare clic su SCARICA LA PROTEZIONE GRATUITA to download the latest Avast Antivirus application, as shown below.

10. Once the file is downloaded, do to I miei download fare doppio clic su Setup file, and follow the on-screen instructions to install Avast.

Now when you launch the Avast program, you will not face Virus Definitions won’t update issue again.

Leggi anche: Come disinstallare McAfee LiveSafe in Windows 10

Method 13: Contact Avast Support

If there are any major issues with Avast even after reinstalling the software, you can seek help from the Avast support site. This is a worth trying option to get rid of Avast not updating virus definitions issue. Follow the below-mentioned steps to contact the Avast support site.

1. Launch your favorite browser and visit the official Avast help center.

2. Now, scroll down the screen and click on Contatti pulsante.

3. Then, report your issue by following the on-screen instructions, and now, you could connect to an Avast professional to fix Avast antivirus not updating virus definitions problem.

Domande frequenti (FAQ)

Q1. Why does my Avast not updating virus definitions?

Ans. Se ce ne sono incompatibility issues in your PC, your Avast will not update new settings. If your Avast does not update this feature for you, make sure you check your firewall settings or repair the software if necessary.

Q2. Does Avast cause problems with Windows 10?

Ans. In some circumstances, Avast might interfere with the pre-installed apps of your PC and causes Windows 10 to crash, freeze, consume more resources, display Blue Screen Error (BSOD), and a lot more. This might occur due to some incompatible programs you run manually or a few automatic services running in the background when you boot your Windows.

Q3. Why is my Avast browser not opening?

Ans. If the Avast browser does not open on your Windows 10 PC, it may be because it is outdated or not updated properly. Pochi corrupt files within the app also cause the problem. Browser cache, cookies, and corrupt data also prevent Avast from being opened in the browser.

Q4. Is Windows Defender better than Avast?

Ans. Per essere più precisi, Avast is better than Windows Defender Firewall. Few reports say that the detection rate for Windows Defender Firewall was 99.5 % while Avast detected 100% of malware and viruses. Avast also comes with advanced features that are not in Windows Defender Firewall.

Consigliato:

Ci auguriamo che questa guida sia stata utile e tu potresti farlo fix Avast not updating virus definitions issue in your system. Let us know which method worked for you the best. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section.