how to uninstall avast

Avast Free Antivirus / Premium Security
1

I try to uninstall avast free version but get message. “A setiface error has occurred 536870929”
How can i uninstall avast.

2

try the uninstallation avas tool
hope it helps

3

Download the latest version of avast! Uninstall Utility and save it.
Uninstall avast from Control Panel (if possible). If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
Run the avast! Uninstall Utility saved on 1. If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after you’ve run it.