If you are new to WordPress, start learning, I suggest http://h2cweb.net/basic-concepts-on-wordpress/ very basic concept about WordPress. Then http://h2cweb.net/install-wordpress-in-localhost/ Read this post for install WordPress on your PC.
also, you can visite http://codex.wordpress.org/New_To_WordPress_-_Where_to_Start and http://codex.wordpress.org/Installing_WordPress
hope you can be install WordPress.
