Find a file that is named as uninstall.exe or unins000.exe.Go to the installation folder of Avast Cleanup Premium.Just follow the instructions below to execute this step: The second method involves uninstaller.exe, through which Avast Cleanup Premium can be uninstalled. Follow the prompt on the screen, and you will get to see a progress bar that will take you to remove the Avast Cleanup Premium from the computer.Right-click on Avast Cleanup Premium, and then click on uninstall a program.In Control Panel, under programs, go through the list of the ones that are installed on your computer.Go to Start Menu, then click on the Control Panel.There are 10 methods that users can adapt if they want to uninstall Avast Cleanup Premium : Method #1 How To Uninstall Avast Cleanup Premium In PC ( Windows 7, 8, 10, and Mac ) 2 How to Uninstall Avast Cleanup Premium on Mac?.1 How To Uninstall Avast Cleanup Premium In PC ( Windows 7, 8, 10, and Mac ).