To uninstall a template you have installed at your Joomla site complete the following steps.
- Select the Extensions menu
2. Select the Manage button
3. On the left hand side you will see the option to filter by type which allows you to filter by component, module, plug-in, template and more. Choose the template option
4. You will now see a list of templates installed at your web site which you can uninstall.
To uninstall one of the templates select the check box next to the design you want to delete and choose the Uninstall button.