Fixa Avast som inte uppdaterar virusdefinitioner

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• Outdated Avast will cause the discussed problem.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.
• Föråldrat Windows operativsystem.
• 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.

Metod 1: Starta om datorn

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 stänga the PC using the Power options and turn it on again after some time.

1. Navigera till Start-menyn.

2. Välj nu kraftikon längst ned till vänster på skärmen.

3. Flera alternativ som Sleep, stängaoch Omstart kommer att visas. Här, klicka vidare Omstart.

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. Högerklicka på avast Antivirus ikon på skrivbordet.

2. Klicka nu på Våra Bostäder.

3. I fönstret Egenskaper byter du till Kompatibilitet fliken.

4. Here, check the box Kör det här programmet som administratör.

5. Klicka slutligen på Ansök> OK för att spara ändringarna.

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

Läs också: Fixa virusdefinitionen misslyckades i Avast Antivirus

Metod 3: Ändra inställningar för datum och tid

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. tryck på Windows + I-nycklar tillsammans för att öppna Windows-inställningar.

2. Välj nu Tid & språk inställning.

3. Nästa, in Datum Tid kontrollera de två värdena Ställ in tiden automatiskt och Ställ in tidszonen automatiskt alternativen är aktiverade.

4. Klicka sedan på Synkronisera nu 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. Slå på Windows-tangenten och typ Avast Gratis Antivirus. Klicka på Öppen från sökresultatet.

2. Gå till Meny icon from the top right corner of the Avast user interface.

3. Välj sedan Inställningar från listan.

4. Byt nu till Uppdatering fliken och klicka på Sök efter uppdatering button. Make sure you get the following messages.

• Virusdefinitionerna är uppdaterade
• Avast Free Antivirus is up to date

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

Läs också: Så här fixar du Avast Update Stuck på Windows 10

Metod 5: Stäng bakgrundsprocesser

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. tryck på Windows-tangenten, Typ Tjänster, och klicka på Kör som administratör.

2. Scrolla nu ner och dubbelklicka på aswbIDSAgent tjänsten.

3. Now, in the new pop-up window, change start~~POS=TRUNC typ to Automatic, as depicted.

Notera: Om Tjänstestatus is stoppad, klicka sedan på Start knapp. Om Tjänstestatus is Springa, Klicka på Sluta och starta den igen.

4. When you start the service, you may face a 1079 error (or something similar to that). In this case, switch to the log On fliken, klicka på Det här kontot alternativknappen och välj Bläddra alternativ.

5. I Ange det objektnamn som ska väljas field, type the username of your account.

6. Klicka sedan på Kontrollera namn option to authenticate the object name.

7. Klicka nu på OK to save the changes and if you are prompted, type in your administrator account.

8. Klicka på Ansök> OK to save the changes and check if you were able to open Avast without any issues.

Läs också: Hur man tar bort Avast från Windows 10

Metod 7: Kör virussökning

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.

Därför rekommenderas du att skanna din dator enligt anvisningarna i vår guide Hur kör jag en virussökning på min dator?

Om du vill ta bort skadlig programvara från din dator, kolla vår guide Hur man tar bort skadlig programvara från din dator i Windows 10.

Metod 8: Uppdatera 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.

Se därför till om du har uppdaterat ditt Windows-operativsystem och om några uppdateringar väntar, använd vår guide Hur man laddar ner och installerar den senaste uppdateringen av Windows 10

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

Metod 9: Ändra Windows Defender-brandväggsinställningar

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.

Alternativ II: Inaktivera brandvägg (rekommenderas inte)

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.

Alternativ III: Skapa ny regel i brandväggen

1. Gå till Sök-menyn och typ Windows Defender-brandvägg med avancerad säkerhet. Klicka sedan på Kör som administratör.

2. Klicka nu på i den vänstra rutan Inkommande regler som avbildats.

3. Klicka sedan på i den högra rutan Ny regel… som visat.

4. Se nu till att du väljer Program alternativet under Vilken typ av regel skulle du vilja skapa? menyn och klicka på Nästa> som visat.

5. Klicka sedan på Bläddra ... knapp motsvarande Denna programväg: som visat.

6. Navigera sedan till C:Program Files (x86)Avast sökväg och dubbelklicka på inställning file. Then, click on Öppen knapp.

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

7. Klicka sedan på Nästa> i Ny inkommande regelguide fönstret som visas.

8. Välj nu alternativknappen bredvid Tillåt anslutningen och klicka på Nästa> som avbildats.

9. Se till Domän, privat och offentlig rutor är markerade och klicka på Nästa> som visat.

10. Lägg till ett namn till din nya regel och klicka på Finish.

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. Lansera avast Antivirus and navigate to Meny> Inställningar som du gjorde tidigare.

2. Växla sedan till Felsökning fliken.

3. Klicka här Reparera app in the right pane. Wait until the repairing process is complete. This might take a while.

Notera: 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. Typ Lägga till eller ta bort program i Windows sökning box. Launch it from the search result, as shown.

2. i Sök i den här listan bar, typ avast.

3. Klicka sedan på avast och sedan, Ändra.

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

4. Klicka på Reparera 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.

Läs också: Åtgärda SearchUI.exe Suspended Error på 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.

Notera: 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. Lansera avast och klicka på Meny alternativet i det övre högra hörnet av skärmen.

2. Välj nu Inställningar från rullgardinsmenyn.

3. Navigera sedan till Allmänt tab and then select click on Felsökning alternativ.

4. Välj sedan Återställ till standard knapp.

5. If you are prompted, click on Ja 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.

Besök 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. Typ Windows systemkonfiguration in the Windows search bar. Then, click on Systemkonfiguration att starta den.

2. Byt till boot tab in the window that opens.

3. Välj sedan Felsäker start under Boot options and then, click on OK, enligt nedanstående.

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 du tidigare laddat ner.

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

7. Klicka nu på Avinstallera.

8. After Avast has been uninstalled, Omstart Windows in Normalt läge.

9. Visit this official Avast link och klicka sedan på LADDA NED GRATIS SKYDD to download the latest Avast Antivirus application, as shown below.

10. Once the file is downloaded, do to Mina nedladdningar, dubbelklicka på 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.

Läs också: Hur man avinstallerar McAfee LiveSafe i 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 Kontakta oss knapp.

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.

Vanliga frågor (FAQ)

Q1. Why does my Avast not updating virus definitions?

Ans. Om det finns några 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. Få 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. För att vara mer exakt, 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.

Rekommenderas:

Vi hoppas att den här guiden var till hjälp och att du kunde 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.