Whether you’ve used avast! Antivirus for a long while, manage a large organization, or simply installed the wrong product, it is imperative that you understand the correct uninstallation procedure before installing a different avast! Antivirus product.
the following guide will help you through the process.
1. Go to start >> control panel>> add/remove programs
2. Navigate to add/remove programs, and uninstall the relevant avast! Antivirus product.
3. Restart the computer.
4. now try to install the new avast antivirus setup.
if the issue persists with the new installation of antivirus please initiate the chat with our technician for live assistance: