Help, Windows 7 issue with startup.

I suddenly have an issue with Windows 7 loading past entering in my password. The screen becomes black and stays there.

I am using my computer in safe mode at the moment, I need help. Where should I start?

Angie

You will find all the necessary steps here : http://www.sevenforums.com/tutorials/219533-troubleshooting-windows-7-failure-boot.html .