The antivirus users have recently begun to report more and more severe problems that they encountered when trying to start the system. For many, an error appeared on the screen that informed users that Avast scan failed. In fact, the problem arose because the antivirus version could not function after the last update of the Windows 10 operating system. At the moment, developers have fixed the compatibility problem through antivirus updates.
Joint identification of the problem allowed the service providing the antivirus service to fix it.
Most Avast users recently witnessed the following error: 'Avast scan failed.' This guide will definitely help you to solve the problem in a few minutes. Moreover, here, you'll find a guide on how to adjust its work correctly.
The company found a way to prevent this problem and now automatically delivers an antivirus database (VPS) update to all its customers. All users who installed the database update must be insured against this malfunction.
Service users who have not yet managed to upgrade to version 1803 are strongly advised to pre-update their antivirus.
It is recommended that you create a full system backup before upgrading Windows. A backup copy will allow you to restore the previous version of the operating system without the use of standard tools that do not always work. Besides, you can remove the antivirus before starting the installation of the Windows feature update, and after successful completion, you can reinstall the antivirus.
The popular antivirus technology service also published instructions for users who tried to update and encountered crashes or other incompatibility errors. Remember that to follow the instructions from the service, and the computer must be operational because to solve the problem, you need to download the new installation media.
This is the penultimate item in the antivirus interface, with a gear icon – click it. Click on the “Active Protection” tab. It is recommended that you pay attention to the “Web screen”. It is about analyzing your actions when visiting websites on the Internet. This script screen checks for the presence of the site in the service blacklist, but Firefox itself does this by checking the Google data, which is much more effective. It is noteworthy that in the browser, you can only disable, but not remove this extension.
To turn off the screen, click on the “Settings” menu item with the gear icon. In the settings window that opens, go to the “Active Protection” tab, where click the gear icon in the “Web Screen” section. In the window that opens, configure the web screen, go to the “Scan Scripts” tab, where uncheck the boxes next to those programs where the screen is not needed.
Once again, but briefly: Settings> Active Protection> Web Screen Settings> Script Scanning. This thing is undoubtedly useful, especially if you are working under an administrator account.
To fix this problem, uninstall any third-party security software that was installed on your Mac. If the problem persists, run a removal tool to remove the remnants of security software.
Click the Finder icon in the Dock to be in the Finder.
On the menu bar, click Go > Applications.
Do one of the following:
If an app isn't in a folder or doesn't have an Uninstaller, drag the app from the Applications folder to the Trash, then choose Finder > Empty Trash.
If the app is in a folder, open the app's folder to check for an Uninstaller. If you see Uninstall App or App Uninstaller, double-click it.
Follow the on-screen instructions to uninstall the app.
After completing the uninstall, restart your Mac and install Norton.
If the problem persists, go to step 2 to run the RemoveCompetitiveProducts tool.
Download the RemoveCompetitiveProducts tool.
Unless you save it elsewhere, the file is downloaded into the Downloads folder.
Click the Finder icon in the Dock to be in the Finder.
On the menu bar, click Go > Downloads to go to the Downloads folder.
In the Downloads folder, double-click the RemoveCompetitiveProducts.zip file to expand it.
If you use Safari, the file is automatically extracted after you download it. Skip to line 5 to open the file in Terminal.
In the Downloads folder, right-click or control-click the RemoveCompetitiveProducts.command file, and then click Open With > Terminal (default).
If you see a prompt that the tool is from an unidentified developer, click Open to continue.
In the Terminal window, type your administrator password to authenticate, and then press return. When you type your password, no characters appear.
After the tool finishes removing the third-party security software and its remnants, it displays the message 'Competitive Products of Norton removed successfully'.
Exit all programs, and restart your Mac.
After you restart your Mac, reinstall your Norton product.
For more information about removing a third-party security software on Mac, refer to the following support links:
If you need further assistance with removing a third party security products from your computer, contact the corresponding product technical support.
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