howdy This is the first time I try using ccleaner, but i'm little worry on what to deleted or using ther auto fix all feature. All i wanted to do is delete the old program that still left in the registry, or delete anything that help prevent my PC from getting problem later on. So i wanna ask: which feature is the best and safety to highlight in Ccleaner? On the left panel of this screenshot, which one is safe to tick? and are the list on the right safe to delete or should I leave them alone for now since my PC isn't giving me any problem?