How to install wordpress?

Installation Steps:

1. Download and unzip the WordPress package if you haven't already.
2. Create a database for WordPress on your web server, as well as a MySQL user who has all privileges for accessing and modifying it.
3. Rename the wp-config-sample.php file to wp-config.php.
4. Open wp-config.php in a text editor and fill in your database details as explained in Editing wp-config.php to generate and use your secret key password.
5. Upload the WordPress files in the desired location on your web server:
   • If you want to integrate WordPress into the root of your domain (e.g. http://example.com/), move or upload all contents of the unzipped WordPress directory (but excluding the directory itself) into the root directory of your web server.
   • If you want to have your WordPress installation in its own subdirectory on your web site (e.g. http://example.com/blog/), create the blog directory on your server and upload WordPress to the directory via FTP.
6. Run the WordPress installation script by accessing wp-admin/install.php in a web browser.
   • If you installed WordPress in the root directory, you should visit: http://example.com/wp-admin/install.php
   • If you installed WordPress in its own subdirectory called blog, for example, you should visit: http://example.com/blog/wp-admin/install.php

Refer:
http://codex.wordpress.org/Installing_WordPress#Things_to_Know_Before_Installing_WordPress