How to completely uninstall Magento extension

  1. Disable the extension. See the How to disable Magento extension page for reference.
  2. If the extension contains any dependent MySQL table, remove it.
  3. Delete the config record for the module you want to delete from the core_recourse table in the database.
        DELETE from `core_resources` WHERE code LIKE 'extension_name';
    The extension_name is the same as the folder app/code/community/MageWorx/<Extension>/sql/
  4. Delete /var/cache folder.
  5. Clear the websites cookies. The extension shouldbe completely uninstalled.