REINSTALL MAC OS X
I`ve installed windows 10 with boot camp on my mac mini (late 2014), and accidentally uninstall boot camp assistant, from control panel. Now i`m stuck in windows and i cannot go back into my mac os. i`ve tryied everything, restarting with option key (alt key) doesn`t work also. when i open computer manager in windows, i see that the second partition is empty. what can i do, because i`m solution-empty. please help.