To update the core version of WordPress, you can use the built-in updater by going to the Dashboard > Updates. If your site is using an older version, you may need to update manually by downloading the latest version from the WordPress.org website and following these steps:
How to change admin/login password in wordpress.
To change a user’s role in WordPress, you can follow these steps: From the WordPress admin dashboard: 01. Log in to your WordPress dashboard: 02.