As a long-time Windows user who is for the first time in his life considering switching to a Mac, I obviously have some questions. I've read quite a bit about how Macs handle software uninstalls. I understand that it's not 100% clean when you delete an application - sometimes some stuff is left hanging around. However, I have a question: Does OSX suffer from "Windows residue?" Windows residue is all that crap that builds up in your Windows computer over time as you uninstall applicaitons. All those extra registry entries. All those extra .dll's. All those programs that add processes when your computer starts up (you can see them in msconfig or process monitor). All of this crap slows down your Windows machine over time and prompts a power user to reformat/reinstall at least once a year. On OSX, is it just some small configuration files that are left around, or do active processes tend to hang around?