SlimCleaner

SlimCleaner is the world’s first software that lets you clean and optimize Windows systems using a crowd-sourced approach. SlimCleaner uses aggregated-cloud feedback to recommend optimal settings for programs, start-ups and services.
SlimCleaner uses what's called "authoritative ranking" to ensure that the ratings for your programs are accurate and that they reflect what people really think. It works by weighing the ratings of each contributor against their previous levels of accuracy and against the ratings of high-ranking users.