Shut down mysql
Install mysqld as service
C:> mysqld --install
If you have problems installing mysqld as a service using just the server name, try installing it using its full pathname:
C:> C:\mysql\bin\mysqld --install
Just to make sure its installed and Startup Type is automatic:
goto administrative tools -> Services
Check if MySql is listed and Startup Type is Automatice. You can change the type by right click - Properties..
Hope this helps 🙂