Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_6 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E200 Safari/6533.18.5) So I just recently installed Snow Leopard on an external drive to defrag my main drive. I've been having issues with partitioning my drives (hence the defragging) so I didn't make a separate partition for the OS, I just installed it into the main partition on the external. I use the external for bulk storage.. It's huge and I don't have space among my three drives to keep it backed up. I'm done and I don't need it on my external anymore. So my question is: how do you completely uninstall OS X from a drive when wiping it isn't an option? Is it as simple as trashing the folders in the root directory it creates (Applications, Library, Users, System)? I sure hope so. Thanks.