HP Pavilion G6 Laptop Won't Boot!

OK, this is the problem.

My HP Pavilion laptop is now not booting, when I turn it on it looks like this:

( http://h30434.www3.hp.com/t5/image/serverpage/image-id/50785i6202CBBA518511E3/image-size/original?v=mpbl-1&px=-1 )

But instead of the windows logo it has a HP logo. And it just hangs at that screen permanently with the loading wheel forever spinning... Sometimes it will have "Preparing Automatic Repair" underneath if it's the third failed boot.

Please help, 

 - Adam