Wordpress change

I’ve installed Wordpress so now have a blog but that’s not what I wanted. I want a CMS. Can I install something else, like Joomla, right over Wordpress? Or do I have to do something to uninstall Wordpress first? I know Wordpress can be changed to be a CMS, but the instructions are beyond me. I need something easier, but still free.

if you don’t have any content or something you want to keep from your WP blog, just delete it and install what you want.

Like Bobocat said, if you don’t have any important content on your blog then you can just uninstall WP platform. WordPress is better for blogging not for CMS.