Korjaa se, että Avast ei päivitä virusmääritelmiä

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• Outdated Avast will cause the discussed problem.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.
• Vanhentunut Windows-käyttöjärjestelmä.
• 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.

Menetelmä 1: Käynnistä tietokone uudelleen

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

1. Navigoida johonkin Käynnistä-valikon.

2. Valitse nyt virtakuvake näytön vasemmassa alakulmassa.

3. Useita vaihtoehtoja, kuten uni, sulkeaja Käynnistä uudelleen tulee näkyviin. Tästä, klikkaa Käynnistä uudelleen.

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. Napsauta hiiren kakkospainikkeella Avast Virustorjunta-kuvake työpöydällä.

2. Napsauta nyt Kiinteistöt.

3. Siirry Ominaisuudet-ikkunassa kohtaan Yhteensopivuus Tab.

4. Here, check the box Suorita tämä ohjelma järjestelmänvalvojana.

5. Napsauta lopuksi Käytä> OK Tallentaa muutokset.

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

Lue myös: Fix Virus Definition Failed in Avast Antivirus

Tapa 3: Muuta päivämäärä- ja aikaasetuksia

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. paina Windows + I -näppäimet yhdessä avataksesi Windowsin asetukset.

2. Valitse nyt Aika ja kieli asettaminen.

3. Next, in Treffiaika -välilehti, varmista kaksi arvoa Aseta aika automaattisesti ja Aseta aikavyöhyke automaattisesti vaihtoehdot ovat päällä.

4. Napsauta sitten Synkronoi nyt 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. Paina Windows-näppäin ja tyyppi Avast Free Antivirus. Valitse avoin hakutuloksesta.

2. Mene valikko icon from the top right corner of the Avast user interface.

3. Valitse sitten Asetukset luettelosta.

4. Vaihda nyt kohtaan Päivitykset välilehti ja napsauta Tarkista päivitykset button. Make sure you get the following messages.

• Virusmääritykset ovat ajan tasalla
• Avast Free Antivirus is up to date

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

Lue myös: How to Fix Avast Update Stuck on Windows 10

Tapa 5: Sulje taustaprosessit

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. paina Windows-näppäin, tyyppi Palvelut, ja napsauta Suorita järjestelmänvalvojana.

2. Vieritä nyt alas ja kaksoisnapsauta aswbIDSAgent palvelusta.

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

Huomautus: Jos Palvelun tila is Pysäytetty, napsauta sitten Aloita -painiketta. Jos Palvelun tila is Running, Klikkaa stop ja aloita se uudelleen.

4. When you start the service, you may face a 1079 error (or something similar to that). In this case, switch to the Kirjaudu Päällä välilehti, napsauta Tämä käyttäjä valintanappi ja valitse selailla vaihtoehto.

5. Vuonna Kirjoita objektin nimi ja valitse field, type the username of your account.

6. Napsauta sitten Tarkista nimet option to authenticate the object name.

7. Napsauta nyt OK to save the changes and if you are prompted, type in your administrator account.

8. Valitse Käytä> OK to save the changes and check if you were able to open Avast without any issues.

Lue myös: Kuinka poistaa Avast Windows 10:stä

Tapa 7: Suorita virustarkistus

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.

Siksi sinun on suositeltavaa tarkistaa tietokoneesi oppaamme Miten suoritan virustarkistuksen tietokoneellani ohjeiden mukaisesti?

Lisäksi, jos haluat poistaa haittaohjelmia tietokoneeltasi, tutustu oppaaseemme Haittaohjelmien poistaminen tietokoneesta Windows 10:ssä.

Tapa 8: Päivitä 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.

Varmista siis, että jos olet päivittänyt Windows-käyttöjärjestelmäsi ja jos päivitykset ovat kesken, käytä oppaamme Windows 10:n uusimman päivityksen lataaminen ja asentaminen

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

Tapa 9: Muokkaa Windows Defenderin palomuuriasetuksia

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.

Vaihtoehto II: Poista palomuuri käytöstä (ei suositella)

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.

Vaihtoehto III: Luo uusi sääntö palomuurissa

1. Mene Haku-valikko ja tyyppi Windows Defenderin palomuuri lisäsuojauksella. Napsauta sitten Suorita järjestelmänvalvojana.

2. Napsauta nyt vasemmassa ruudussa Saapuvan liikenteen säännöt kuten kuvattu.

3. Napsauta sitten oikeanpuoleisessa ruudussa Uusi sääntö… kuten on esitetty.

4. Varmista nyt, että valitset Ohjelma vaihtoehto kohdassa Millaisen säännön haluaisit luoda? valikosta ja napsauta Seuraava> kuten on esitetty.

5. Napsauta sitten Selaa ... vastaavaa painiketta Tämä ohjelmapolku: kuten on esitetty.

6. Siirry sitten kohtaan C:Program Files (x86)Avast polku ja kaksoisnapsauta setup file. Then, click on avoin painiketta.

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

7. Napsauta sitten Seuraava> vuonna Uusi saapuvien sääntöjen ohjattu toiminto kuvan mukainen ikkuna.

8. Valitse nyt vieressä oleva valintanappi Salli yhteys ja klikkaa Seuraava> kuten kuvattu.

9. Varmista Verkkotunnus, yksityinen ja julkinen laatikot on valittu ja napsauta Seuraava> kuten on esitetty.

10. Lisää lopuksi nimi uudelle säännölle ja napsauta Suorittaa loppuun.

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

Tapa 10: Korjaa 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. Tuoda markkinoille Avast Antivirus and navigate to Valikko> Asetukset kuten teit aiemmin.

2. Siirry seuraavaksi kohtaan Ongelmien karttoittaminen Tab.

3. Napsauta tästä Korjaussovellus in the right pane. Wait until the repairing process is complete. This might take a while.

Huomautus: 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. Tyyppi Lisää tai poista ohjelmia vuonna Windows-haku box. Launch it from the search result, as shown.

2. sisään Hae tästä luettelosta palkki, tyyppi Avast.

3. Napsauta sitten Avast ja sitten, Muuttaa.

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

4. Valitse korjaus 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.

Lue myös: 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.

Huomautus: 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. Tuoda markkinoille Avast ja klikkaa valikko vaihtoehto näytön oikeassa yläkulmassa.

2. Valitse nyt Asetukset pudotusvalikosta.

3. Siirry sitten kohtaan general tab and then select click on Ongelmien karttoittaminen vaihtoehto.

4. Valitse sitten Palauta oletukseen painiketta.

5. If you are prompted, click on Kyllä 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.

Vierailla Avast official uninstaller siteja napsauta sitten avastclear.exe to get the Avast Uninstall Utility, as shown below.

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

1. Tyyppi Windows järjestelmän kokoonpano in the Windows search bar. Then, click on järjestelmän kokoonpano käynnistää sen.

2. Vaihda Boot tab in the window that opens.

3. Valitse seuraavaksi Safe boot under Boot options and then, click on OK, kuten alla.

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 olet ladannut aiemmin.

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

7. Napsauta nyt Uninstall.

8. After Avast has been uninstalled, Käynnistä uudelleen Windows sisään Normaalitila.

9. Visit this official Avast link ja napsauta sitten LATAA ILMAINEN SUOJAUS to download the latest Avast Antivirus application, as shown below.

10. Once the file is downloaded, do to Lataukseni, kaksoisnapsauta kohtaa 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.

Lue myös: Kuinka poistaa McAfee LiveSafe Windows 10:ssä

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 Ota yhteyttä painiketta.

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.

Usein kysytyt kysymykset (FAQ)

Q1. Why does my Avast not updating virus definitions?

Ans. Jos niitä on 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. harvat 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. Olla tarkempi, 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.

Suositus:

Toivomme, että tästä oppaasta oli apua ja sinä pystyit 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.