Not sure where you are now so see if this helps.
By default ( out of the wamp box ) mysql comes with a userid of 'root' which has no password.
in x:\wamp\apps\phpmyadminx.y.z is a file called config.inc.php
This file is used by phpmyadmin to login to the mysql database server.
It comes with the following parameters set
/* Server: localhost [1] */
$i++;
$cfg['Servers'][$i]['verbose'] = 'localhost';
$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['port'] = '';
$cfg['Servers'][$i]['socket'] = '';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';
$cfg['Servers'][$i]['AllowNoPassword'] = true;
/* End of servers configuration */
which say login with user 'root' and use no password and also that no password is allowed 'AllowNoPassword' = true
If you have used some other tool to change the root user or even remove it completely then of course this config will not work.
So if you have added a password to 'root' using another tool you must change the config accordingly.
If you have removed the 'root' userid you must amend the config accordingly to use the new super user account you set up.
If you removed 'root' and did not setup a new super admin user then you are 'up a creek without the proverbial paddle'. So start again.
now you say in your last post
Quote
I have a password for sql.. so when I sign in I have to enter a password.
Now the question is, what userid did you set a password on and what was the password?
If the userid is root then change the ['password'] = parameter
If the userid is something else change the ['user'] = '' and ['password'] ='' to the new values.
if this is no help, then lets have a littel more information about what your current problem is.