I installed .2018 update today and noticed GrimeFighter listed in the Settings > Tools. I am not sure if it was there before. It is not listed in the Tools menu. I tried to do research on it, but did not find much info. I saw some info that said it was a paid program. Is it available in Avast Free AV? I also found out that if it is not listed in the Tools menu, then it is not compatible with my system. The info said it would not run on Win 8.1. Is this true? I went ahead and removed the component.