"Blue Screen" is most likey down to hardware - some are using the following in order to resolve this:

1). log onto the troubled computer in safe mode
2). copy and save minidump files from c:\windows\minidump
3) open files from minidump folder on another computer, or restart your computer with safe mode networking.
4) download the program after seaching windows online for 'Install Debugging Tools for Windows 32-bit Version'
5) run program and open minidump files, to see the file that is causing computer to crash.
6) research file using google and other resources to see where and what the file belongs to.
7) uninstall the offending hardware from device manager (right click my computer, properities),
8) remove the physical hardware from the computer
9) restart