Select thePowericonit looks like a circle with a vertical line through the top half.
SelectRestart, orUpdate and restartif Windows updates are pending.
To do that, hold theShiftkey while you pressRestart.
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You may need toclose some applicationsor agree for them to be forced to shut down before the restart completes.
To do this, press and hold thephysical power buttonfor about ten seconds.
The computer will shut down and turn off entirely.
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A black screen doesn’t always spell trouble.
The laptop might be hibernating or asleep.
you’re able to also try pressingWin+Ctrl+Shift+Bto restart the graphics driver.
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If the graphics driver has failed, this will sometimes turn the screen on again.
If none of that works, see the force-restart directions above.
The black screen should go away once the computer is powered on.
If it doesn’t, there’s probably a different problem that needs to be fixed.
If youre unable to reach Startup prefs,force restart Windows in Safe Mode.
Learn more about how tofactory reset an HP laptop.