It is very important to quit the app before uninstalling it; otherwise, an error message might pop up to interrupt the process, or incomplete uninstall happens. After the app has been appropriately quit, you can then commence with the installation process.

STEP 1: Using the preferred method to remove avast from Mac the first step to take is to select the Avast Menu bar icon and click Open Avast from the context menu.

Open Avast from the context menu

STEP 2:  Select Avast Security in the Menu bar on the top-left of the screen and Click  Uninstall Avast.

Click  Uninstall Avast

STEP 3: Tap on  Uninstall.

Tap on  Uninstall Avast

STEP 4: Click additional security products to uninstall Avast Mac and Tap on Continue.

Click additional security products to uninstall Avast Mac and Tap on Continue

STEP 5: Use your Touch ID or enter your administrator Username and Password and Select  OK to grant permission for the uninstallation.

 Use your Touch ID or enter your administrator Username and Password

STEP 6: A notification will show on the screen "Thank you for using avast." Click QUIT.

Immediately after any open applications are closed, the uninstallation is complete, and Avast Security is removed from your Mac.

 Avast Security is removed from your Mac

Alternative Method to Remove Avast from Mac (Using Avast Removal Tool).

STEP 1: You have to download  Avast Security for Mac setup file and save it to a familiar location on Mac.

Important: Avast security is an Avast Removal tool.

Alternative Method to Remove Avast from Mac (Using Avast Removal Tool)

STEP 2: Double-click on the downloaded setup file (avast_security_online.dmg) and select Uninstall Avast.

Select Uninstall Avast

STEP 3: Select Uninstall.

STEP 4: Select additional security products to uninstall and select  Continue.

Select additional security products to uninstall

STEP 5:  Use your Touch ID or enter your administrator Username and Password, and Tap on OK to grant permission for the uninstallation.

Use your Touch ID for uninstall Avast

STEP 6: A notification will show on your screen "thank you for using avast" Click Quit.

Immediately after any open applications are closed, the uninstallation is complete, and Avast Security is removed from your Mac.

Avast Security is removed from your Mac

How to Remove Avast Using Osx Uninstaller:

Among other tools that support to uninstall applications on macOS, Osx Uninstaller stands out as a professional, reliable and handy utility Avast removal tool. It is designed to help all-level users to uninstall Avast from Mac.

STEP 1: Download Osx Uninstaller and drag the icon to the Application folder.

STEP 2: Select Avast Mac Security and select  Run Analysis.

STEP 3: As all the items about Avast Mac Security are scanned out and listed, Select Complete Uninstall, and then Tap on  Yes to conduct a thorough removal. A notification will show on your screen, "congratulation Avast Mac has been successfully removed."

STEP 4:  Tap on Back to Interface to re-scan your Mac for currently installed apps.

With OSX uninstaller, you can uninstall Avast Mac Security without hassle.

How to Remove Avast on Mac Using the Drag-To-Delete Method:

STEP 1: You need to open the Finder and head to the Applications folder from the left panel.

STEP 2: Click on the Avast Mac Security icon and drag it with your mouse to the Trash.

STEP 3: If prompted, enter your account password correctly to execute this change. This will automatically delete Avast Mac Security immediately.

You can Equally Move the App to Trash by These Methods, but note that this doesn’t mean Avast is uninstalled from your computer:

OPTION 1: Right-clicking on the app, and choosing the 'Move to Trash' option;

Or,

OPTION  2: Click on the app, and go to File > Move to Trash.