Here u can learn how to uninstall the joomla components step by step
1.Select Extensions -> Extension Manager using joomla Admin panel
2.Under the filters – ‘Select Type’ = ‘Component’, or find it in the list of extensions installed.
3.Use the checkbox on the side to select the component(s) that you want to uninstall.
4.Click on the ‘Uninstall‘ icon at the top of the screen.
5.After that you will see a message that says:”Uninstalling component was successful.”