Go back to services and it is still not running.
You can start the service also in this Windows service manager (not the XAMPP control panel). And as I told you before: If the service can't start, there must be something in the Windows event log (you have more then one log in Windows!)
Error Do you already have another sql service running on port 3306
With e.g. "xampp-portcheck", netstat or tcpview, you can find the program which is using port 3306 (maybe it's only your firewall...)