Hi I just add things as they pop into my head.A blue screen of death is the worst type of error a computer can experience, unlike an application crash, which doesn’t bring down the whole system. A BSOD is the result of low-level software crashing — or faulty hardware.
A computer in proper working state shouldn’t blue-screen at all, but no software or hardware is perfect. Even a properly functioning computer may blue screen on rare occasions for no apparent reason — possibly as the result of rare driver bugs or hardware issues.
If your computer is regularly blue-screening, you have a problem. If you encounter a blue screen once every two years, don’t worry about it.