You should be able to uninstall K2 through the regular uninstall process of joomla components - go to Extensions manager >>Manage>> Find K2 component and click on uninstall.

How do I Uninstall a Joomla module?

Select Module from the Select Type drop-down menu. Search for the chosen module in the filtered results and click on the checkbox beside it. Find the Uninstall icon in the upper right Joomla! 2.5 menu and click on it to completely remove the chosen module.

What is K2 in Joomla?

K2 was built as a complete replacement of the default article system in Joomla!. Install it like any Joomla! extension, import your articles from the default Joomla! article system and you instantly get a host of new features for your existing content: rich content forms for items (think of Joomla!

How do I Uninstall a plugin in Joomla 3?

Inside the Extension Manager, open the Manage Tab, find and select the extension youd like to uninstall, and click on the Uninstall button. And thats it! Your extension will be permenantly removed. Look for the green message indicating that the uninstallation was successful.

How do I manually delete a Joomla component?

Delete the folders and filesDelete your component.Go to /components/ and delete your component.Go to /media/ and check if you find your component there. Go to the /modules/ folder and check if it contains a folder named mod_[your-component-name]. Run the same step for the /plugins/ folder.Sep 3, 2020