I was using phpmyadmin(in Wamp) without a password for root. I thought to set a password for root and goto Privileges page and set a password for root. Now whenever I go to localhost/phpmyadmin page it gives me the following error.

MySQL said: Documentation
#1045 - Access denied for user 'root'@'localhost' (using password: NO)
phpMyAdmin tried to connect to the MySQL server, and the server rejected 
the connection.

You should check the host, username and password in your configuration 
and make sure that they correspond to the information given by the 
administrator of the MySQL server. 

I don't know that what is the problem. It is not showing me a login type page to enter a username and password. Any idea that what is the problem ?

Thanks