How do I uninstall GrimeFighter?

By a mistake I have gotten GrimeFighter installed at my computer, but it doesn’t work properly, so I want to remove it from my computer. But how? It is not in the list of programs at my computer, and in my Avast “backend”, I can’t see it either.

Now GrimeFighter scans and tries to operate my computer every Wedensday evening, and I can’t stop in doing that, and when the operation is done, I says that it can’t get deep enough into the problems…
What to do?

Welcome to the forums lasse11.

See if this helps: https://www.avast.com/faq.php?article=AVKB119