How to prevent Avast Cleanup from loading on startup?

Whenever I turn on/restart my PC, the Avast Cleanup icon appears on the tray.
แทงบอลชุด
I tried disabling it using Task Manager => Startup, but it still appears every time my OS (Windows 10) starts up.

Thanks in advance.

https://forum.avast.com/index.php?board=63.0