What is BSOD? What do you do when you get blue screen in a computer? How do you troubleshoot it?

• BSOD stands for blue screen of Death.

When there is a hardware or OS fault due to which the windows OS can run, it give a blue screen with a code. to resolve it, boot the computer in "Last known good configuration".If this doesn't work then boot the computer in safe mode. If it boots up then the problem will be  with one of the devices or drivers in the computer.