The most frustrating blue screen computer errors are basically caused by some physical faults such as faulty memory, power supplies, overheating of PC components, or hardware running beyond its limits, device driver conflicts etc.
If you see the blue screen and halts occur in boot process, and also notice some specific error message appear on your screen, this indicates a serious issues most probably due to inappropriate device driver or firmware .
Blue screen is really an annoying issue and creates a lot of trouble to the end user.
Follow these steps to fix a Blue Screen in Safe Mode
Once booting start, select "Safe Mode" from the boot menu.
Scan your hard drive by running your antivirus software . If the program locates an infection, move it to your vault or follow the on-screen instructions. After program completion, if a virus was removed, attempt to reboot your computer and see if this clears up the problem. If not, restart your computer in safe mode.
Restore your computer to a previous point. Click on the "Start" button. Select "All Programs", "Accessories", "System Tools" and finally "System Restore". Choose a restore point on or before the last day your computer worked without error. Finally Reboot your computer to see if it loads correctly.