Re: Help with the dreaded PC blue screen
The cause may be a corrupted system file, or it may be hardware failure. What version of Windows? If you have the Windows installation disk, boot from it and choose the repair mode option. I used it recently on a friends pc that wouldn't start up even in safe mode (Windows 7), and though it took about half an hour, everything was restored.
If you can boot for a limited time in Safe Mode, then do so and get your data off.