The scariest thing that can happen to your MAC or Windows computer is failure to turn on at all. You press the little power button and nothing happens. No beeps, clicks, clunks or whirs. The light on the monitor is on, but your computer is totally dead.
First of all don’t panic! When people face that kind of problem, they tend to panic, worried that all of the important data on their PC or MAC are gone. Your documents and pictures are probably safe, just not accessible at the moment. This computer problem shows that one of the hardware components have failed.