When you have just installed WampServer and start a new project (/www repertory), the project can be reach by use this kind of URL localhost/myProject. But, with newer version of WampServer, localhost redirection is removed. So, in order to fix it quickly, we have to modify the index.php file:

C:\wamp\www\index.php

and change value of $suppress_localhost to false.

$suppress_localhost = false;