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Reinstall each piece of hardware at a time and use a Power On Self Test card to test the computer and identify the component that’s causing your computer to not come on completely. Boot with essential hardware and check whether the computer starts normally or not.The power supply unit tends to cause components inside the computer to work selectively or intermittently. Test your power supply and replace it immediately if it fails or doesn’t function properly.Check for any signs of electrical shorts within the PC as these can cause your computer not to boot at all, or damage it.Other Things to Try When Windows 10 Won’t Boot If the hard drive is still working, chances are you’ll be able to copy your files onto an external drive before reinstalling Windows 10 or taking your PC for repair. If you don’t have a backup of your hard drive, take it out, connect it to a USB adapter or dock, and plug into a different working computer. If your computer won’t power on but the motherboard light is on, the problem could be the power button or the wires that connect it to the motherboard.
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The power button is one of the potential culprits when your computer won’t boot in Windows 10. If you see any of these signs on your computer, try the following fixes. Your computer may be getting power but still won’t boot properly, it doesn’t react when you press the power button, or it turns on for a second and then shuts down again. If your computer boots in Windows 10 while the peripherals are unplugged, try and plug each one separately to test and find the problematic one.
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If you have a prebuilt system, you may want to contact the device manufacturer before opening your PC so as not to void the warranty. Once you rule out the power cord and wall outlet, check the cabling within the PC case to ensure there are no malfunctioning or loose cables.Plugging in the power cable properly into the power outlet or supply in case it has become loose.Checking the power supply switch to ensure that it’s on.Checking your power cables to confirm that they’re operating properly.Some quick hardware fixes you can try include:
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