Computer not getting past boot up

Hello, today i just turned on my computer and it froze on startup. i cant get past the 1st dell screen, and im afraid to restart, as it is on the boot screen, and not into windows yet (or ever )

via Bleeping Computer Last 20 Posts http://www.bleepingcomputer.com/forums/t/513292/computer-not-getting-past-boot-up/