Strange errors while booting my Laptop

Hello everyone! I use HP elite book 8440 p and I run Windows 7 on it. So last night I was using my laptop and it was working properly, no signs of any error or hardware malfunction. This morning I woke only to find that on boot I get: STOP: 0X0000007B (0XF78D2524, 0XC0000034, 0X0000000, 0X0000000). What is this? Is this some kind of error? Help!
