Avast, a popular antivirus program that offers solid protection against viruses, is free. However, you can also purchase a paid version.

Avast has many problems from the beginning. Avast doesn’t open on Windows without any error messages being displayed.

People have tried many different methods to solve this problem. We hope this post helps you find the best solution to your problem.

Avast is a popular antivirus that is widely used around the globe. The software can have many problems.

Avast won’t open on Windows problems are most commonly caused by broken software installation or service issues.


Avast won’t open on Windows or isn’t working correctly might be fixed by performing a repair or a clean installation of the program.

The main software service might be causing problems if the program isn’t running as it should. The problem can be solved by restarting the program.

We have some tips and tricks to help you fix Avast won’t open on Windows 10 if you’re a novice user or someone who is not tech-savvy. Remember that malware[3] is not to blame, so don’t panic.


How to Fix Windows 10 Avast Won’t Open

avast won't open

1.Temporarily disable Avast Antivirus

  1. Right-click the Avast icon on your taskbar.
  2. Click Disable after 10 minutes on Avast Shields Control.
  3. Click OK to confirm the action.
  4. Then, re-enable Avast Shields control.
  5. Right-click Avast’s icon again on your taskbar. Click on Avast Shields Control and then click Enable all Shields.

Windows 10 should now recognize Avast. However, if you still have issues, there are other solutions.

2. Reinstall the Avast Antivirus

If you still have the problem, run the Avast Uninstall utility to remove Avast Antivirus from your computer. It will also delete all files related to Avast while Windows is in Safe Mode.

Step 1: Start your system by following the normal procedure. Log in with an administrator account to delete the program.

Step 2: Select “Start” from the taskbar. Type “Control Panel” into the search bar. Open it.

Step 3: Once in the Control Panel click on “View by category”. Click on “Uninstall a Program” in the Programs section.

Category- Avast won’t open

Step 4: Once you’re in the Program and Features Window, choose the Avast option. Right-click on the icon and select “Uninstall”. This will remove Avast Antivirus.

Uninstall- Avast won’t open windows 10 


Step 5: Once Avast antivirus has been uninstalled, you will see a list of options, including Update, Repair Modify, Modify, and Uninstall. You must choose “Repair” from this menu. You can choose “Next” to fix the error caused by the Avast installation.

Why won’t the door open for repair

Step 6: A confirmation window asking for confirmation will appear on your screen. To confirm, click “Continue”.

Step 7: Click “Finish” after you’ve completed the uninstallation process.

Step 8: Once you have completed the above steps, restart your computer to verify that Avast antivirus is running properly.


3. Try After Repair the Avast

If Avast won’t open or function properly, you can use the Avast Setup wizard.

Avast Repair will repair or replace any program files that are missing, corrupted or outdated. It also resets the software configuration.

Notice: Avast Repair may leave some settings unchanged and restore other settings to their default.

  1. You can close any antivirus or other apps that are currently running on your computer by right-clicking Start > Apps and Features.
  2. To confirm, choose the version of Avast you want from the left panel on the Apps and Features screen.
  3. In the Avast Setup wizard, select Repair.
  4. To confirm the repair, select Yes. If prompted, click on Done to confirm the repair.


4. Perform a Clean Install

A clean install can resolve almost all issues, including the Avast Not Opening on Windows problem. A clean install is easy. This method can be used if all the above methods fail to resolve the issue.

It does not only perform the uninstall but also deletes any cache files and corrupted registry entries.

To perform a clean installation, you can follow these steps.

Step 1: Go to the Avast download page and click the FREE DOWNLOAD TO PC button. This will allow you to download the most recent version of Avast.

Step 2: Go to the uninstallation page for Avast and download the uninstallation utility, avast clear. Save it to your computer.

Step 3: After downloading the files and booting into Safe Mode then disconnect from the Internet.

Step 4: To open the Run dialog box, press the Windows key + R keys simultaneously. To open the System Configuration window, type MSConfig into the dialog box. Click OK.

Step 5: Click on the Boot tab and check the Safe boot option. Then click OK.

Step 6: Turn on the computer to enter Safe Mode.

Step 7: Run Avast’s uninstallation utility and browse the folder in which it is stored. You can keep Avast if it is in the default folder, Program Files. Navigate through File Explorer until the right folder is found.

Step 8: Click on Remove, then restart your computer using the normal startup.

You can now check if Avast is not opening on Windows.

5. Something Wrong While Avast Installation Process Trust Error

This error message may appear when you try to install Avast for Windows 10.

You’ll see a Process Trust fatal error message. It states that Avast won’t trust Avast Installation. This means you can’t install Avast on your computer.

This error is caused by a conflict between Avast (or your current antivirus program) and Avast. Disable your antivirus program (in most cases Windows Defender), and then install Avast.

You shouldn’t have any issues. This error will remind users that two antivirus programs on their computer are not good.

You can also take a look at our comprehensive guide if Windows 10 blocks the installation of the antivirus. We will fix it quickly.



6. Reboot your computer

  1. Enter System Configuration into the search box and hit Enter.
  2. Select the Hide All Microsoft Services checkbox, then click Disable All.
  3. Click on the Startup tab and click on Open Task Manager.
  4. Select all items in Task Manager and click on Disable.
  5. Close the Task Manager.
  6. Click OK on the Startup tab in the System Configuration dialog box.
  7. Reboot your computer and then try to update Avast.

This allows you to launch Windows 10 with a small number of drivers and programs. Avast updates may be blocked by software conflict.

Avast might sometimes fail to update its virus definitions. This can be a serious problem, but we have a detailed guide that will help you fix it.