If you haven’t been messing around inside the case, it’s possible the power supply is dead. If it still won’t power on at all, it’s possible you disconnected a power cable inside its case. If it’s a desktop PC, ensure the power switch on the back of its case-on the power supply-is set to the On position. If your computer won’t power on at all, ensure it’s plugged into a power outlet and that the power connector isn’t loose. First Things First: Has Anything Changed?īe sure to think about changes you’ve made recently-did you recently install a new hardware driver, connect a new hardware component to your computer, or open your computer’s case and do something? It’s possible the hardware driver is buggy, the new hardware is incompatible, or that you accidentally unplugged something while working inside your computer.
