Urgent help: No bootable device after restarting; No Bootcamp
After restarting I got the "NTLDR is missing" error message, now it's telling me No bootable device.
Never used Bootcamp, but I was running WinOnX.
I held down the option key but nothing is coming up.
How did this come to be and what should I do now?
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)