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All Tutorials /Joomla

How to Remove Cassiopeia from Joomla

Updated on:
May 13, 2026
By:
Madhav Bhandari
Use this interactive demo to learn how to uninstall the Cassiopeia template from your Joomla site.

Quick summary

This tutorial shows you how to remove the Cassiopeia template from a Joomla administrator dashboard by reassigning the default template and using the Delete button in Site Template Styles. Following these steps ensures Cassiopeia is fully uninstalled without breaking your site's active theme.


Steps

  1. Access the System dropdown menu in your administrator dashboard to find template configuration options.
  2. Click on Site Template Styles to view and manage all installed templates, including Cassiopeia.
  3. Confirm that Cassiopeia is listed as the default template in the styles list.
  4. Set another template as default by clicking the star icon under the Default column.
  5. Locate Cassiopeia in the list and select the checkbox next to it.
  6. Click the Delete button in the toolbar to remove Cassiopeia from your Joomla system.

📌 Why this matters

Removing the Cassiopeia template from Joomla is a common step for site administrators who want to keep their installation clean, reduce clutter in the template manager, and prevent accidental activation of an unwanted theme. Because Cassiopeia is set as the default template out of the box, it cannot be deleted until another template is assigned as default first — a non-obvious two-step process that trips up many users. Knowing the correct sequence — navigating to Site Template Styles, reassigning the default, selecting Cassiopeia, and clicking Delete — saves time and avoids site-breaking mistakes. This demo gives Joomla administrators a clear, repeatable workflow for managing and removing built-in templates safely.
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