Resolve Windows 10 related issues for your HP computers or printers by HP Windows 10 Support Center
How did you reset the camera? Did you use the reset button (stick a pin in the small hole for reset for 30 seconds)?
Also, try removing the memory card and battery and try the reset button again.
Reinstall the mem card / battery.
Try a different memory card.
IF none of these things work and its a new purchase, take the camera back to the store.
If that's not an option, you will have to contact HP Support directly.
Contact HP Worldwide | HP® Official Site
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