Fix: Windows Defender Blocking Avast Antivirus (VisthAux.exe)

If you use Avast Antivirus and Windows Defender at the same time, you may get an error message saying that VisthAux.exe is blocked. Here’s how to fix the problem.

Fix: Windows Defender Blocking Avast Antivirus (VisthAux.exe)

Symptoms:

If you have Windows Defender installed on your computer, you may notice that it is blocking Avast Antivirus from running. This is because Windows Defender is configured to block any program that it considers to be a threat. In this case, it considers Avast Antivirus to be a threat because it is a third-party security program that is not from Microsoft.

To fix this, you will need to add Avast Antivirus to the list of exceptions in Windows Defender. To do this, open Windows Defender and click on the “Settings” tab. Then, click on “Exceptions” and add Avast Antivirus to the list.

Cause:

There are a few different causes that can lead to Windows Defender blocking Avast Antivirus (VisthAux.exe). One possibility is that your antivirus software is outdated and needs to be updated. Another possibility is that your antivirus software is conflicting with another program on your computer.

If your antivirus software is outdated, you will need to update it in order to fix the issue. To do this, open your antivirus program and check for updates. If there are any available, install them and restart your computer.

If your antivirus software is conflicting with another program, you will need to determine which program is causing the conflict. To do this, you can try disabling one program at a time and seeing if the issue persists. If the issue goes away when you disable a certain program, then you have found the culprit.

Solution:

If you’re using Avast Antivirus and Windows Defender is blocking it, you can try the following solution:

1. Open the Avast user interface and go to Settings.

2. Click on Troubleshooting and select the option to Reset Avast Secure Browser.

3. Restart your computer and check if the issue has been resolved.

Conclusion:

There are several ways to fix the issue of Windows Defender blocking Avast Antivirus. The most common way is to simply add Avast Antivirus to the list of exceptions in Windows Defender. Another way is to uninstall Avast Antivirus and then reinstall it. This should fix the issue.