Justin Bieber reportedlyOtto JMay 3, 01:40 AMAs someone who's come over from the Windows world this has to be one of the few features that I think OS X is worse at. I shouldn't have to install a stand alone app (AppCleaner) to be sure that I'm removing the whole programme. So, you're saying that windows programs don't leave files on your computer when uninstalled? Installing and uninstalling