How do I completely remove Exceptionless from a server?

I recently installed Exceptionless on a server for testing purposes. Now how do I go about completely removing it from said server? I have uninstalled and deleted all the directories for both ElasticSearch and Exceptionless. When I reinstall it again, it says my email already exists. I basically need to completely remove the tool from my system, so that I can try different configurations. Any help would be greatly appreciated....Read more