6 Solutions to Fix Avast Firewall Issues

Avast is the most excellent free antivirus solution for people searching for a high-quality tool without paying for it. However, there are several concerns that customers face that need to be addressed. One of these concerns is the Avast firewall’s inability to start.

A disabled firewall indicates that your computer isn’t fully protected against external assaults. It’s critical to solve the issue. There are multiple methods to clear up this issue, so make sure you try them all.

What is Avast Firewall?

Avast is well-known for its use of cutting-edge technology. The Czech company has been offering high-quality services to its consumers for some years. It has a sizable market position in the internet security ecosystem.

Its antivirus programs can combat various cyber threats, malware, viruses, and other malware. It also works with popular operating systems like Windows, macOS, iOS, and Android.

The cornerstone of Avast’s security suite is its powerful two-way firewall. Avast firewall features a default option called “Auto-decide.” It allows regulating incoming and outgoing programs by making decisions independently.

The beautiful thing about Avast is that when you switch modes. It doesn’t annoy you with a slew of popups. Avast has already generated particular rules against each component.

It is capable of performing a rapid examination of all traffic and deciding what to do with it. It specifies five network access tiers as well as complicated decision-making rules. The firewall monitors your network. It also protects it against network-based assaults that try to exploit flaws in your OS and applications.

How Does Avast Premium Security Work?

External Threats are passed from one computer to the next. It takes place without the consumers’ knowledge. This malware identifies unpatched vulnerabilities or inadequate security settings on a computer. Then, they work their way into the systems.

Cybercriminals gain access to computers and mobile devices. It allows them to steal data, pose financial threats, and do anything they want.

A firewall monitors your network traffic and identifies and blocks undesirable data packets if you employ one.

It filters incoming and outgoing data or traffic between your internal network and the rest of the internet or external network. Based on security rules, a firewall can accept, deny, or drop traffic.

Windows Defender has two primary functions:

  • Blocking questionable outgoing connections to protect your internal network infrastructure
  • Blocking illegal connection requests. It could be a prospective hacker, protects against outside threats.

How To Install Avast Security on Windows 10 and macOS?

Windows 10

  • Download Avast Premium Security for Windows.
  • After you’ve downloaded the setup file, right-click it and select “Run as administrator,” then confirm your choice by clicking Yes.
  • Choose your favorite language from the drop-down menu and then click “Install” to continue.
  • Review their policy and click “I Agree” to share anonymous user data with Avast and other third parties. Otherwise, select “No, Thanks.”
  • If you’ve already experienced Avast Premium Security and want to upgrade to a premium plan, click Activate.
  • By selecting “Run the first Scan,” you can start scanning your system. After that, a sophisticated scan is run to look for viruses, malware, and other bad actors.


  • Avast Premium Security for Mac’s setup file may be downloaded here.
  • Double-click the setup file you downloaded.
  • Select “Continue” from the drop-down menu.
  • Review the privacy policy before clicking “Continue.”
  • After going through the license agreement, click “I Agree.”
  • A prompt for installation will appear once again. If you like, you can also change the default settings.
  • Click “Install software” and enter an admin password.
  • To allow Avast to access your files from the download folder, click OK.
  • Select “Open security preferences” from the drop-down menu.
  • Select “Close” from the drop-down menu.

How To Solve Avast Unable To Start Firewall?

1. Scan Your Computer and Run the Repair Tool

The security setting fails to switch on. It’s reasonable to think that a malicious tool prevents you from connecting to the Internet and causing damage to your computer. If Avast scanners are also compromised, you’ll need to scan your machine with Avast and at least another security scanner.

  • Double-click on the Avast in the system tray to launch the user interface, then go to “Protection” then “Scans.”
full system scan
  • Choose the Full Virus Scan option to scan your complete machine for harmful software. Your PC will be scanned, and a progress bar will show.
full system scan
  • When the scan is finished, you’ll be able to view the results and, if any risks are discovered, eliminate them.
Full Virus scan

2. Turn off Windows Firewall

It’s a well-known truth that two separate antivirus or firewall programs rarely coexist. You should disable the Firewall, which does nothing more than prohibiting Avast from starting. It is most likely the source of your computer’s problems. To disable Firewall, follow the steps below.

  • After pressing the Start button in the bottom left corner of your desktop, go to the Control Panel.
  • To find the Windows Defender Firewall option, change the View by option to Small icons.
Windows Defender Firewall option
  • Select Turn Windows Firewall off or on from the menu on the left side of the window by clicking on it.
Turn Windows Firewall off or on
  • Next to Private and Public network settings, select the radio button next to the “Turn off Windows Firewall (not recommended)” option.
Turn Windows Firewall off or on
  • Check to determine if Avast Firewall may be activated at this time.

3. Reinstall Avast Premium Security

If the application has become buggy due to application conflicts or other factors, you may need to do a clean avast installation. However, the procedure is simple to follow, and it’s a solution you shouldn’t overlook.

  • Click the Download Free Protection button in the middle of the Avast page to download the latest version of Avast.
  • Additionally, you will need to save the Avast Uninstall Utility to your computer.
  • After you’ve downloaded these files, disconnect from the Internet and boot into Safe Mode.
  • Launch the installed Avast Uninstall Utility and navigate to the location where Avast was installed. You could leave it in the default folder if you installed it there. 
uninstall Avast premium security
  • However, make sure you select the correct folder because the contents of any folder you choose will be erased.
  • Remove the option and restart your computer using the standard startup method. Then, check to see whether the issue has been resolved.

4. Windows 10 Action Center doesn’t recognize Avast

  • In your taskbar, right-click on the Avast icon.
  • Disable Avast Shields for 10 minutes by going to Avast core Shield.
  • Then, in the same way, start the firewall again by selecting Enable all shields.
  • The warnings mentioned above should no longer disturb you now that Windows 10 recognizes Avast.
Disable Avast Shields for 10 minutes
  • If the problem persists, open the search bar and type cmd.
  • Select Command Prompt (Admin).
  • Type the provided command into the Command Prompt and press Enter:
    • winmgmt /verifyrepository
  • If you obtain WMI repository is consistent -no problems identified, type and click Enter the following command:
    • winmgmt /resetrepository
  • If you get the message WMI repository is inconsistent -problems detected, type the following command and hit Enter:
    • winmgmt /salvagerepository
  • Continue to the last step; if you get the WMI repository has been rescued, the WMI repository has been successfully rebuilt.
winmgmt /verifyrepository
  • Restart your computer now.

One of the most common problems with Avast on Windows 10 is that the Action Center doesn’t recognize it.

If this happens, you’ll probably get a notice that says Defender and Avast Antivirus are both disabled. Windows couldn’t identify an antivirus program.

5. Avast Antivirus won’t update 

Update your operating system.

  • Click on the Update & Security option in the Settings tab.
  • From the left panel, pick Windows Updates, then the Check for Updates option.
Install available windows updates.
  • Install all of the available updates.
  • Other apps and applications may be unable to function if you are running an old Windows version.

Turn off your firewall/VPN

  • Type firewall settings in the Start menu.
  • Select the “Firewall and network protection.”
Firewall and network protection
  • Choose the appropriate option and click on it. Windows Firewall can be turned on and off.
Firewall and network protection
  • Your Windows firewall may block you from installing the most recent software updates on your computer.

Restart your computer.

  • In the search box window, type System Configuration and press Enter.
  • Select the Hide all Microsoft services check box on the Services tab, then click Disable all.
  • Select Open Task Manager from the Startup tab.
  • Select all objects in Task Manager and disable them.
  • Start-up programs should be disabled
  • Close the Task Manager application.
  • Click OK in the System Configuration dialogue box’s Startup tab.
  • Restart your computer to update Avast.

Avast’s virus definitions aren’t always up to date. This approach enables you to start Windows 10 with only a few programs and drivers installed. Unfortunately, Avast updates may be blocked due to a software conflict.

6. Avast Won’t Start

  • Go to Start and type the control panel in the search box.
  • Go to Programs in the Control Panel.
  • Select Avast, then Repair from the drop-down menu.
  • You can attempt to repair Avast if it fails to load. After the operation is finished, restart your computer to see whether the problem persists.


Having a robust firewall built at the network’s perimeter is now more critical than ever. Avast is an excellent technique to protect your computer network and data from hackers.

Frequently Asked Questions

Why is my Avast firewall not working?

Restart your system and run Avast. To activate the firewall, click “Firewall,” then “Start.” Whether you have application rules set up, try removing them from the Firewall menu to check if one of them is causing a firewall problem.

Can I use Windows Firewall with Avast?

It is not a good idea to run two firewalls, and avast certainly does not recommend it. Even Windows Firewall cautions about the dangers of running two firewalls at the same time. As a result, you should only use them at your own risk. Only with Avast Free, which does not have a firewall, should you leave Firewall on.

Why does my Avast firewall keep turning off?

An out-of-date version of Avast may be causing such issues. For example, suppose your Windows OS has recently received a software update. In that case, you should also check if a new version of your antivirus software is available.

Is Avast firewall better than Windows?

Independent testing shows that both programs provide good anti-malware. Avast has a lesser impact on system performance than Defender. However, Avast is the overall victor. Its security suites include more security-enhancing tools and services than Defender.

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