If your computer is powering on but you get a black screen that says something like “no bootable device” or another sort of “disk error” message, your computer can’t seem to boot from the hard drive that Windows was installed on. RELATED: How to Boot Your Computer From a Disc or USB Drive

The Computer Powers On And Says No Bootable Device In this case, you’ll have to get your computer’s hardware fixed or get a new computer.īe sure to check your computer monitor-if your computer seems to power on but your screen stays black, ensure your monitor is powered on and that the cable connecting it to your computer’s case is plugged in securely at both ends. 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.

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