BuddyPress.org

If you simply downloaded and installed buddypress via admin screen… to get back to your “regular” site…you’ll need to go in to your site via FTP (or server backend like cpanel) and delete the entire “buddypress” plugin. This would be in the xxx/wp-content/plugins/BUDDYPRESS

Select the buddypress folder and delete it. The plugin will force WP to disengage it and your site should be back where you were before you started this fun…