Dear Eddy,
I was looking for "How do I uninstall Avast CleanUp?" on Avast Homepage and Avast Forum.
There was no way to find or answer anywhere.
That's why I opened a new topic in the forum.
Avast wrote to me:
"Go to Windows Control Panel, then Programs and Features, then Uninstall Avast Cleanup."
Avast CleanUp does not have Programs and Features!!