How to uninstall a Component

The Joomla! CMS will not let you uninstall Core Components.

They are locked.

You can of course uninstall 3rd Party Components.

Select Extensions from the Manage Panel in the System Dashboard.

extensions manage

In the Manage Extensions screen, select the check-box next to an extension and then the Uninstall button.

extensions uninstall

After you have uninstalled a component

Check that no database tables have been left behind by the uninstallation script.

Also check that no directories and files have been left behind.

If database tables and files have been left behind then they pose a security risk.