HP All-in-One 24-f0xx: Factory Reset failed, now the hard disk is not recognized as a boot device

[jmtt77]

The PC initially was booting to a BSOD complaining about "bad system config info".  I tried the reset where my files are saved. Then I tried the reset where my files are not saved.  Both failed, and I was still stuck at the same BSOD.

Then I tried the "factory data reset" option to try to reinstall the original Windows image.  That turned into a "Boot device not found, please install an operating system on your hard disk. Hard disk - (3F0)

I booted Linux from a thumb drive to look at the hard disk.  I noticed that the first two partitions, sda1 and sda2, and been deleted, and the Windows partition which used to be sda3 had changed to sda1.  The space for the original sda1 and sda2 partitions was still empty.  The recovery partitions still exist as sda2 and sda3.

I ran the F2 diagnostics and verified that the Hard Drive extensive check is a pass.  Memory test is also a pass.  While booted into Linux, I can mount the Windows partition, and the files still appear to be there, and fsck thinks the file system is good.

I booted a Win10 install image (downloaded from Microsoft, i.e., not a recovery disc created from this system while it was still bootable) from a thumb drive, and reinstalled Windows 10.  It thought it succeeded, but the system is still stuck at the "Boot device not found" error.

I see that "Optane Memory" disks have some sort of driver-related issue, but this is a 1TB Toshiba SATA disk (TOSHIBADT01ACA100).  It feels to me like everyone except the UEFI boot code (BIOS 84DE vF.30 11/19/2019) recognizes this drive.  Any advice on how to fix this problem would be greatly appreciated.

[jmtt77]

I forgot that I also wanted to mention that if I F9 boot to the "Select boot device -> boot from EFI file" option, it complains that no valid file system is available.  But if I boot into Linux, I see that a new EFI System Partition with files has been created as a new sda1.

If I boot to a command line prompt with my Windows thumb drive, diskpart sees the drive, and all the partitions.

As I said, only UEFI boot seems to not recognize the hard disk.