Error 404 on Drupal Admin Section

My Drupal installation was fine until I uploaded it into my web hosting. It always returned error 404 page (not found) every time I clicked on any admin section (i.e http://domain.com/admin/build, http://domain.com/admin/settings, etc). I have tried bypassing clean URLs by using http://domain.com/?q=admin, renamed .htaccess file and so on. But all of my efforts still bring […]