Txhim kho Avast Tsis hloov kho tus kab mob txhais lus

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• Outdated Avast will cause the discussed problem.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.
• Outdated Windows operating system.
• 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.

Txoj kev 1: Pib dua 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 kaw lawm the PC using the Power options and turn it on again after some time.

1. Nkag mus rau Start ntawv qhia zaub mov.

2. Tam sim no, xaiv lub hwj chim icon nyob rau hauv qab sab laug ces kaum ntawm qhov screen.

3. Ntau qhov kev xaiv nyiam pw tsaug zog, Muab kaw, Thiab Pib dua yuav tso tawm. Ntawm no, nyem rau ntawm Pib dua.

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. Txoj cai-nyem rau Avast Antivirus icon ntawm Desktop.

2. Tam sim no, nyem rau Properties.

3. Nyob rau hauv lub qhov rais Properties, hloov mus rau lub compatibility tab.

4. Here, check the box Khiav txoj haujlwm no ua tus tswj hwm.

5. Thaum kawg, nyem rau ntawm Thov> OK kom txuag tau qhov kev hloov.

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

Kuj nyeem: Fix Virus Definition Failed in Avast Antivirus

Txoj Kev 3: Hloov Hnub thiab Lub Sijhawm Chaw

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. Nias lub Windows + I keys ua ke qhib Windows Chaw.

2. Tam sim no, xaiv Sijhawm & Lus chaw.

3. Next, in Hnub Tim & sijhawm tab, xyuas kom meej ob qhov tseem ceeb Teem lub sijhawm cia thiab Teeb lub sijhawm ua haujlwm tau kev xaiv yog toggled rau.

4. Ces, nyem rau Sync tam sim no 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. Ntaus lub Windows qhov tseem ceeb thiab hom Avast Dawb Antivirus. Nias rau Qhib los ntawm kev tshawb nrhiav.

2. Mus rau Ntawv qhia zaub mov icon from the top right corner of the Avast user interface.

3. Tom qab ntawd, xaiv chaw los ntawm daim ntawv teev npe.

4. Tam sim no, hloov mus rau Hloov tshiab tab thiab nias rau Kos rau Kev Hloov Tshiab button. Make sure you get the following messages.

• Virus txhais tau mus txog hnub
• Avast Free Antivirus is up to date

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

Kuj nyeem: Yuav ua li cas kho Avast Update Stuck ntawm Windows 10

Txoj Kev 5: Kaw cov txheej txheem tom qab

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. Nias lub Windows qhov tseem ceeb, hom cov kev pab cuam, thiab nias rau Khiav raws li cov thawj coj.

2. Tam sim no, scroll down thiab ob-nias rau aswbIDSAgent kev pab cuam.

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

Nco ntsoov: Yog hais tias lub Qhov xwm txheej kev pabcuam is Nres, ces nias rau ntawm Start khawm. Yog tias Qhov xwm txheej kev pabcuam is khiav, nyem rau Tsis txhob thiab pib dua.

4. When you start the service, you may face a 1079 error (or something similar to that). In this case, switch to the Log Hauv tab, nyem rau ntawm Qhov no tus account radio button and select the Xauj kev xaiv.

5. Hauv Ntaus tus kwv lub npe los xaiv field, type the username of your account.

6. Ces, nyem rau Kos Npe option to authenticate the object name.

7. Tam sim no, nyem rau OK to save the changes and if you are prompted, type in your administrator account.

8. Nias rau Thov> OK to save the changes and check if you were able to open Avast without any issues.

Kuj nyeem: Yuav ua li cas tshem Avast los ntawm Windows 10

Txoj Kev 7: Khiav 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.

Li no, koj tau qhia kom luam theej duab koj lub computer raws li tau qhia hauv peb phau ntawv qhia Kuv Yuav Ua Li Cas Khiav Kab Mob Hauv Kuv Lub Computer?

Tsis tas li ntawd, yog tias koj xav tshem tawm malware ntawm koj lub computer, saib peb phau ntawv qhia Yuav ua li cas tshem Malware ntawm koj lub PC hauv Windows 10.

Txoj Kev 8: Hloov 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.

Hence, ensure if you have updated your Windows Operating System and if any updates are pending in action, use our guide How to Download and Install Windows 10 Latest Update

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

Txoj Kev 9: Hloov kho Windows Defender Firewall Settings

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.

Option II: Disable Firewall (Tsis pom zoo)

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.

Option III: Tsim Txoj Cai Tshiab hauv Firewall

1. Mus rau Tshawb ntawv qhia zaub mov thiab hom Windows Defender Firewall nrog Advanced Security. Ces, nias rau Khiav raws li cov thawj coj.

2. Tam sim no, nyob rau sab laug pane, nyem rau ntawm Cov Cai Txais raws li tau piav qhia.

3. Tom qab ntawd, nyob rau hauv txoj cai pane, nyem rau ntawm Txoj cai tshiab… raws li qhia.

4. Tam sim no, xyuas kom koj xaiv lub Program xaiv nyob rau hauv Hom kev cai twg koj xav tsim? cov ntawv qhia zaub mov thiab nias rau Tom ntej no> raws li qhia.

5. Ces, nyem rau ntawm qhov Xauj ... khawm sib raug rau Txoj kev program no: raws li qhia.

6. Ces, mus rau C:Program Files (x86)Avast txoj kev thiab ob-nias rau teeb file. Then, click on Qhib khawm.

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

7. Ces, nyem rau Tom ntej> nyob rau hauv lub New Inbound Rule Wizard qhov rais raws li qhia.

8. Tam sim no, xaiv lub xov tooj cua khawm ntawm ib sab Tso cai rau kev sib txuas thiab nias rau Tom ntej> raws li tau piav qhia.

9. Ua kom ntseeg tau Domain, Private, thiab Public cov thawv raug xaiv thiab nyem rau ntawm Tom ntej> raws li qhia.

10. Thaum kawg, ntxiv ib lub npe rau koj txoj cai tshiab thiab nyem rau ntawm Tag.

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. Tua tawm Avast Antivirus and navigate to Ntawv qhia zaub mov> Chaw raws li koj tau ua dhau los.

2. Tom ntej no, hloov mus rau Troubleshooting tab.

3. Ntawm no, nyem rau ntawm Kho App in the right pane. Wait until the repairing process is complete. This might take a while.

Nco ntsoov: 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. Hom Ntxiv lossis tshem tawm cov haujlwm nyob rau hauv lub Windows nrhiav box. Launch it from the search result, as shown.

2. Nyob rau hauv Nrhiav daim ntawv no bar, hom Avast.

3. Ces, nyem rau Avast thiab ntawd, Hloov.

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

4. Nias rau kho 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.

Kuj nyeem: 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.

Nco ntsoov: 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. Tua tawm Avast thiab nias rau Ntawv qhia zaub mov option at the top right corner of the screen.

2. Tam sim no, xaiv chaw los ntawm daim ntawv teev npe cia.

3. Ces, mus rau General tab and then select click on Troubleshooting kev xaiv.

4. Tom qab ntawd, xaiv Rov Pib Dua Rau Thaum Twg khawm.

5. If you are prompted, click on Yog 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.

Mus saib 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. Hom lub qhov rais txheej txheem teeb tsa in the Windows search bar. Then, click on Qhov System Configuration mus tua nws.

2. Hloov rau lub khau raj tab in the window that opens.

3. Tom ntej no, xaiv Kev khau raj ruaj ntseg under Boot options and then, click on OK, raws li qhia hauv qab no.

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 koj twb downloaded lawm.

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

7. Tam sim no, nyem rau uninstall.

8. After Avast has been uninstalled, Pib dua Windows hauv Cov hom qub.

9. Visit this official Avast link thiab ces nias rau DOWNLOAD DAIM NTAWV THOV to download the latest Avast Antivirus application, as shown below.

10. Once the file is downloaded, do to Kuv downloads, ob-nias ntawm qhov 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.

Kuj nyeem: Yuav Ua Li Cas Uninstall McAfee LiveSafe hauv 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 Hu Rau Peb khawm.

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.

Cov Lus Nquag Nug (FAQ)

Q1. Why does my Avast not updating virus definitions?

Ans. Yog muaj 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 properlyCov. Tsawg tsawg 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. Yuav kom meej meej, 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.

pom zoo:

Peb cia siab tias phau ntawv qhia no yuav pab tau thiab koj tuaj yeem ua tau 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.