Resetting a MySQL root password (or other password, for that matter) is easy enough if you have admin access to the server.
First go to the command line (Start > Run > "cmd") and type "mysqladmin" – and see a bunch of output text, you're good to go. otherwise you'le need to locate mysqladmin.exe and navigate to that folder.
Once there, enter the following command:
mysqladmin -u root password NEWPASSWORD
and you're good to go!