Ret Avast, der ikke opdaterer 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• Outdated Avast will cause the discussed problem.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.
• Forældet 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.

Metode 1: Genstart 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 lukke the PC using the Power options and turn it on again after some time.

1. Naviger til Start-menuen.

2. Vælg nu magt ikon i nederste venstre hjørne af skærmen.

3. Flere muligheder som Sleep, Luk nedog Genstart vil blive vist. Her, klik videre Genstart.

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. Højreklik på avast Antivirus ikon på skrivebordet.

2. Klik nu på Ejendomme.

3. Skift til vinduet Egenskaber Kompatibilitet fane.

4. Marker afkrydsningsfeltet her Kør dette program som administrator.

5. Til sidst skal du klikke på Anvend> OK for at gemme ændringerne.

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

Læs også: Reparation af virusdefinition mislykkedes i Avast Antivirus

Metode 3: Skift indstillinger for dato og klokkeslæt

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. Tryk på Windows + I-taster sammen for at åbne Windows-indstillinger.

2. Vælg nu Tid og sprog indstilling.

3. Next, in Dato tid fanen, skal du sikre dig de to værdier Indstil tiden automatisk , Indstil tidszone automatisk muligheder er slået til.

4. Klik derefter på Synkroniser 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. Hit på Windows-tasten og type Avast Free Antivirus. Klik på Åbne fra søgeresultatet.

2. Gå til Menu icon from the top right corner of the Avast user interface.

3. Vælg derefter Indstillinger fra listen.

4. Skift nu til Opdatering fanebladet og klik på Søg efter opdatering button. Make sure you get the following messages.

• Virusdefinitioner er opdaterede
• Avast Free Antivirus is up to date

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

Læs også: Sådan repareres Avast Update Stuck på Windows 10

Metode 5: Luk baggrundsprocesser

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. Tryk på Windows-tastenSkriv Tjenester, Og klik på Kør som administrator.

2. Rul nu ned og dobbeltklik på aswbIDSAgent service.

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

Bemærk: Hvis Tjenesten status is Stoppet, og klik derefter på Starten knap. Hvis den Tjenesten status is Løb, Klik på Stands og start 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 fanebladet, klik på knappen Denne konto radioknappen og vælg Gennemse valgmulighed.

5. i Indtast objektet navnet for at vælge field, type the username of your account.

6. Klik derefter på Kontroller navne option to authenticate the object name.

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

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

Læs også: Sådan fjerner du Avast fra Windows 10

Metode 7: Kør Virus Scan

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.

Derfor rådes du til at scanne din computer som anvist i vores vejledning. Hvordan kører jeg en virusscanning på min computer?

Hvis du også vil fjerne malware fra din computer, skal du tjekke vores guide Sådan fjerner du malware fra din pc i Windows 10.

Metode 8: Opdater 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.

Sørg derfor for, at hvis du har opdateret dit Windows-operativsystem, og hvis nogen opdateringer afventer i aktion, skal du bruge vores guide Sådan downloades og installeres Windows 10 Seneste opdatering

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

Metode 9: Rediger Windows Defender Firewall-indstillinger

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.

Mulighed II: Deaktiver firewall (anbefales ikke)

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.

Mulighed III: Opret ny regel i Firewall

1. Gå til Søgemenu og type Windows Defender Firewall med avanceret sikkerhed. Klik derefter på Kør som administrator.

2. Klik nu på i venstre rude Indgående regler som afbildet.

3. Klik derefter på i højre rude Ny regel... som vist.

4. Sørg nu for at vælge Program mulighed under Hvilken type regel vil du gerne oprette? menu og klik på Næste> som vist.

5. Klik derefter på Gennemse ... knap svarende til Denne programsti: som vist.

6. Naviger derefter til C:Program Files (x86)Avast sti og dobbeltklik på setup file. Then, click on Åbne .

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

7. Klik derefter på Næste> i Ny guide til indgående regel vindue som vist.

8. Vælg nu alternativknappen ved siden af Tillad forbindelsen og klik på Næste> som afbildet.

9. Sørge for at Domæne, privat og offentligt felter er markeret og klik på Næste> som vist.

10. Tilføj endelig et navn til din nye regel og klik 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. Lancering avast Antivirus and navigate to Menu> Indstillinger som du gjorde tidligere.

2. Skift derefter til Fejlfinding fane.

3. Klik her Reparations app in the right pane. Wait until the repairing process is complete. This might take a while.

Bemærk: 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. Type Tilføj eller fjern programmer i Windows søgning box. Launch it from the search result, as shown.

2. i Søg på denne liste bar, type avast.

3. Klik derefter på avast og så, Ændre.

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

4. Klik på Reparation  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.

Læs også: Fix SearchUI.exe Suspended Error on 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.

Bemærk: 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. Lancering avast og klik på Menu mulighed i øverste højre hjørne af skærmen.

2. Vælg nu Indstillinger fra rullelisten.

3. Naviger derefter til Generelt tab and then select click on Fejlfinding valgmulighed.

4. Vælg derefter Nulstil til standard .

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.

Besøg Avast official uninstaller site, and then, click on avastclear.exe for at få Avast Uninstall Utility, som vist nedenfor.

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

1. Type Windows system konfiguration in the Windows search bar. Then, click on System Configuration at starte den.

2. Skift til Boot fanen i det vindue, der åbnes.

3. Vælg derefter Safe boot under Opstartsindstillinger, og klik derefter på OK, som vist nedenfor.

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

5. Once Windows 10 is open in Safe Mode, click on downloadede Avast Uninstall Utility du tidligere har downloadet.

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

7. Klik nu på Afinstaller.

8. After Avast has been uninstalled, Genstart Windows i normal tilstand.

9. Visit this official Avast link og klik derefter på DOWNLOAD GRATIS BESKYTTELSE to download the latest Avast Antivirus application, as shown below.

10. Once the file is downloaded, do to Mine downloads, dobbeltklik 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.

Læs også: Sådan afinstalleres 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 Kontakt os .

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.

Ofte stillede spørgsmål (FAQ)

Q1. Why does my Avast not updating virus definitions?

Ans. Hvis der er nogen 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. For at være mere præcis, 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.

Anbefalet:

Vi håber, at denne guide var nyttig, og at du kunne 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.