Yes definitely its possible, just follow the below steps,

1. Stop the Mysql service with pid.
2. Then run mysqld_safe --skip-grant-tables & command.
3. It will skip the specific table and start the Mysql service.

4. Now login to mysql server and update the password for root user.

   -> use mysql;

   -> update user set password=PASSWORD("testing") where User='root';

   -> FLUSH PRIVILEGES;

Replace the "testing" with your password and start using Mysql with your new password..!!!!