What does that error say? The full message is important, in particular the STOP Error code, if there is one.
Also, tell us more about the computer, as requested in red above eg post window.
When does this BSOD, (Blue Screen of Death), appear, random times, or at specific times, eg playing games, editing videos, etc?
How can I solve the Blue Screen Error in my XP operating system? My computer sometimes suddenly stop & show a blue screen error in the screen.