Question Mark Folder Blinking

[negrohero9]

Everytime I turn on my Mid 2012 15inch MBP it comes up with a picture of a folder with a question mark in it and it blinks constantly. If i hit the power button and turn it off. Then back on it goes to the log in screen like its suppose to. What is the reason behind this? is my HDD bad?

 

[GoCubsGo]

Although it is an older article referencing older OS's, I am fairly certain the base reason behind it still applies:
http://support.apple.com/kb/TS1440?viewlocale=en_US&locale=en_US

In short, the system can't find the OS. It is odd that you're having this issue on a brand new machine.

 

[snaky69]

Everytime I turn on my Mid 2012 15inch MBP it comes up with a picture of a folder with a question mark in it and it blinks constantly. If i hit the power button and turn it off. Then back on it goes to the log in screen like its suppose to. What is the reason behind this? is my HDD bad?

That is likely, yes. You're in warranty, let Apple worry about it, just make sure to backup your stuff if you have anything important on the machine.