The power disruption seems to have caused damage to the boot HDD or SSD.
Notice there is no UEFI SATA boot device available on your boot order list.
I would get a new replacement HDD or SSD.
You may have to reinstall the operating system or use HP factory recovery media to restore the operating system.
You will lose data if you have to reinstall Windows. Data may be recoverable on the bad drive. You could connect the bad drive to a different PC as a data drive to see if you can mount the disk for data recovery.
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