To check if mode_rewrite module is enabled on your server do the following;
1.Type <?php phpinfo(); ?> in a php file and save it and run that file in the server.
2.from the list of information displayed, search the word “mod_rewrite” from the browser’s search menu
3. If it is found under the “Loaded Modules” section then this module is already loaded and enabled, and if not then it's not enabled