Start menu, Settings, Control Panel, System applet, Advanced tab, Settings
button on Startup and Recovery section, uncheck box 'automatically restart',
press OK, OK.
when the BSOD happens again, look carefully at the screen dump to see if a
particular device driver is referenced (drivername.sys). press CtrlAltDel
on the keyboard or the reset button on your computer to manually restart the
computer from the BSOD screen.
get back to us with those details, and we go from there