How to Fix Avast Won’t Open and Related Errors {Solved}

Quite a large number of computer users use Avast antivirus software. Among a few of the best antivirus software in the market, Avast is one of them. If you have recently tried to install Avast antivirus application in your Windows 10 and faced Avast won’t open error. Then follow this article to learn how to resolve Avast errors.

Avast errors seem to occur in your system because Avast might not identify the Windows system files as an integral part of your operating system and tries to get rid of them by deleting it.

As mentioned above, Avast is one of the popular antivirus software which is highly recommended by professionals. Even the best of the best applications can cause slight issues. The same happens with Avast when installed in Windows 10.

Users need to keep in mind that they might come across BSOD error while they are installing a new version of Windows on their system i.e. Windows 10. These errors come up when there are compatibility issues between Avast drivers and your CPU.

This is why it is recommended to always install the latest Avast version before upgrading your system to the latest version available.

How to Fix Avast Won’t Open and Related Errors

Follow the article sequentially downwards to effectively implement the steps and resolve the Avast is not running:

1. Avast Causing Black Screen

Avast Black Screen error might not seem huge, but some users have informed that after installing Avast on Windows has caused black screen issues. In case you have come across the error then follow the upcoming solution:

Step 1: Locate the Avast icon on your taskbar and click on it to launch the Avast software.

Step 2: Navigate to the Settings tab and move to General.

Step 3: Again click on Exclusions option and tap on Add button to add the mentioned addresses to the following exclusions:




Step 4: As the final step, restart your system to apply the changes.

Implementing this method should be able to get rid of the black screen issue permanently.

2. Avast Antivirus Won’t Update

Every antivirus application updates itself for any new virus definitions from time to time. However, if Avast fails to do so then it might lead to a very huge problem as it is not protecting the system from the latest online threats.

If you happen to be facing this error and cannot conveniently download and install new Avast updates and follow the article further down:

1. Temporarily Disable Your Firewall/VPN

The Firewall in your system will turn on automatically for various applications acting as a barrier to protect the system. So if you notice that your firewall is blocking you from installing the latest updates on your system.

Then go to Start Menu > Type ‘firewall’ > Double Click on ‘Windows Firewall’ from the listed options.

Finally, click on the option ‘Turn Windows Firewall on and off’ > and turn off firewall protection to proceed further.

2. Update your OS

For applications to work with their latest version the system should be compatible enough to provide those necessary functions.

So, it always recommended updating your operating system along with the applications. Navigate to Settings > Update & Security > Windows Updates > check for updates.

3. Clean Boot your PC

Heavy usage of drivers and software can also force your system to cause errors. Clean booting your system will help your system run Windows 10 with few necessary programs and drivers. This solution will help you in clearing any software conflicts found in your Windows 10 system. Follow the steps mentioned:

Step 1: Click on Start menu and type System Configuration in the search box and press Enter to launch the System Configuration utility.

Step 2: Navigate to the services tab in the menu and select the checkbox named Hide all Microsoft services and tap on Disable all button.

Step 3: Again move to the Startup tab and click on Open Task Manager.

Step 4: Under the Startup tab in Task Manager, select all items and tap on the disable button.

Step 5: Exit the Task Manager.

Step 6: Press OK on the startup tab of the system configuration dialog box.

Step 7: Finally restart the system to apply the changes and update Avast.

3. Process Trust Error

When you are installing Avast on Windows 10, a certain error message like ‘Process Trust’ fatal error message appears on the screen. Followed by, ‘Avast doesn’t trust Avast Installer’. This means you cannot install Avast on your current system.

The main reason for this error to arrive is when there is already an antivirus application installed on your system. If not, then most likely it is because of the system based tool called Windows Defender. So we recommend you to disable those applications if they are in function and then install the Avast again. This shouldn’t create any further issues for your system. This is why users need to maintain one dedicated antivirus application for your system’s safety.

4. Avast Won’t Open

Sometimes Avast fails to load without any proper notifications, at situations like this you should repair the software. Follow the steps to do so.

Step 1: Click on the start menu and type control panel in the search box. Hit enter to launch the control panel.

Step 2: Under the control panel window, choose programs, and click on it.

Step 3: Now click on uninstall a program button and select Avast. Click on the Repair button found at the top.

Finally, restart your system to apply the changes and check if you have resolved the Avast won’t open error.

5. Windows 10 Action Center Does Not Recognize Avast

Mostly faced an issue while using Avast on Windows 10 is when the Action Center doesn’t identify your Avast software. In such instances, you will be notified by a pop-up error message which reads “Windows Defender and Avast Antivirus are both turned off” or “Windows did not find an antivirus program”.

Before implementing the following make sure to disable the Avast antivirus and then enable it again so that the operating system identifies the application without any difficulties.

Step 1: Locate your Avast software icon in your taskbar and right-click on it.

Step 2: From the listed options choose Shields and control and Disable it for approximately 10 minutes.

Step 3: As the final step, enable it again the same way you disabled it but this time select Enable all shields.

We hope this helped the system recognize the software and the errors aren’t displayed anymore. In case you are still bothered by the errors then follow these steps:

Step 1: click on the Start menu that is present on the left corner of the screen. Now type command prompt in the search box and hit enter.

Step 2: From the listed option, right-click on command prompt and choose run as administrator.

Step 3: Then type winmgmt /verifyrepository onto the command line and hit enter.

Step 4: If the following is displayed as the WMI repository is consistent- no problems detected. Then type winmgmt /resetrepository and hit enter.

Step 5: If the screen displays repository is inconsistent – problems detected then type wingmgmt /salvagerepository and hit enter.

Step 6: Again if the screen displays WMI repository has been salvaged – the WMI repository has been successfully rebuilt then exit the window and proceed further.

Step 7: Finally reset your computer to apply the changes.

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By the end of the article, you would found the solution for the Avast won’t open and related errors that have been troubling you and you might have implemented that particular solution and got rid of the error. Hopefully, this article helped you in yielding a better and efficient solution for your issues.