Where do I access GrimeFighter

Due to some rare problems with start-up, I was advised to reinstall avast! IS from scratch on my Windows 8.1 desktop.

I’ve noticed, before and after re installation, I cannot find Grime Fighter. I’ve have not been able to find it on my Windows 7 laptop either.

When I re-installed, Grime Fighter was checked. What is going on?

Not sure as I don’t use it, but this is interesting
http://forum.avast.com/index.php?topic=149125.0