In LW tools>options>filters>keywords --- check the box --- ignore adult content --- click apply then okay

Also under the search tab --- whats new tab --- check the box --- hide adult content.

This will filter out a lot of the adult content, but not all. There are many files that are mislabeled/titled.

You can use the forum search function, upper right between f.a.q. and home to search this topic and associated topics more. You will find the information informative and insightful.