Can't sign in using root. (3 replies)

1 - Windows version 7 sevice pak 1 64-bit
2 - Version WampServer3 64-bit
3 - Apache Version 2.4.18
4 - PHP Version 5.6.19
5 - MySQL Version 5.7.11
6 - WampServer icon Green

Downloaded the Wampserver3 package yesterday. Installed no problem, no changes; straight install.
Server Running
PHP working
PHPinfo() looks good
phpmyadmin working, but I can't sign in using root. #1045 - Access denied for user 'root'@'localhost' (using password: NO)

I've uninstalled and reinstalled both 32bit wamp and 64bit wamp. No change.

Even tried this to set the password to a value, no change: [dev.mysql.com]