I get error message like this “0xc00000e9

Every instance I’m having trouble on my laptop, I get error message like this "0xc00000e9". I don’t know why that I’m unable to start the current vista operation system and cannot run commencement solution.
What do you think is the problem and the solution that I can do about this?
I own a Dell Inspiron 1525 with Windows Vista.
Thank you in advance for any help that you can give me.
