XP doesn't start up and PC keeps rebooting

I shut off my computer while Norton 360 was scanning for viruses, and since
then, my laptop doesn't start up. I get the standard message telling me
windows was shut down incorrectly, and if I would like to start in safe mode,
safe mode with connection port enabled, safe mode with wireless network
enabled, last setting that worked, or normally.

No matter which option I select, the windows logo (with the black
background) appears, and then the screen turns blue for a split of a second -
so I can't read the error message that appears on that screen - the computer
restarts, and keeps rebooting.

I have lenovo, so I tried rescue and recovery. The computer doesn't
recognize it has a hard drive, and says it's corrupt or not functioning.

Any help would be appreciated!