If you want to change the "Meta" section widget, add or remove links from it (like the wordepress link), Go to file: site/wp-includes/default-widgets.php The part you want to edit starts at line 272.you can add links here or delete some you don't like.
WordPress installation
This is the simple guide to install WordPress, taken from the WordPress site. If you are not comfortable with renaming files, Steps 3 and 4 are optional and you can skip them as the install program will create wp-config.php file.