Often times if you see that there is something wrong with your registry you get confused between whether or not to fix it or clean it. Personally, I never really knew that there was a difference. I just know that when my computer run slower and you get it taken care of right away. If you are in the same situation as me you can look at the registry cleaner or repair anything decide for yourself what you need to do. We are all in the same boat when it comes to finding the time to do the things that we need to do for our computers so that they can perform the way we want them to.