I've hit a wall trying to fix my BOOT issue caused by POWER FAILURE...

See if there is a Windows Recovery Environment (RE) setting for UEFI firmware settings:
Boot to Advanced Startup Options in Windows 10

first off.... here are screen shots running through the codes you requested.

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Nothing in advanced options related to BIOS...
Startup Repair- did not work
Cmd Prompt- functional
Uninstall Updates- n/a
System Restore- tried that, did not work
System Image Recovery- None available

What are the status of the important computer files:
a) files backed up to another drive or the cloud
b) backed up images saved to another drive or the cloud
c) no backed up files or images > files need to be saved
d) no backed up files or images > files do not need to be saved

Answer: C&D Mainly pictures and I'm sure other files I'd prefer not to lose. If I have to do a fresh install of Windows, I plan to do that on a fresh drive and attempt to recover data from this one that's down.

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Does this system have Intel Optane? I ask because you have a 28Gb disk listed (would that be a 32Gb Optane module?).

I think that is showing the 32GB External USB stick with the ISO/USB BOOT

Code:

BCD cannot be opened.
Fixboot access denied.
No page file, boot, hibernation, crash dump.
Primary partition D:

Please update the thread with the hardware diagnostics and drive tests.

These are trial and error troubleshooting steps:

Type: chkdsk /r /v D:
reboot



type: bootrec /rebuildbcd

It should display:
Scanning all disks for Windows installations.
Please wait, since this may take a while...
Successfully scanned Windows installations.
Total identified Windows installations: 1
D:\Windows
Add installation to boot list? Yes/No/All:
type: Y
then enter key
It should display :
The operation completed successfully. (The BCD rebuild is complete.)
reboot



Type: sfc /scannow /offbootdir=D:\ /offwindir=D:\windows


Type: DISM /image:M:\ /cleanup-image /revertpendingactions
(change the drive letter M: to D:
reboot



diskpart
sel disk 0
list par
select par 2
del par override
create par efi
format quick fs=fat32
assign letter=W
exit

bcdboot D:\Windows /s W: /f UEFI

I think your computer is trying to boot from a LAN drive (post #6)
Enter BIOS and check boot priority drive.
You may also try to launch boot menu during POST and select Windows boot Manager on your drive.

W10 Tweaker said:

Hi SP1104,

check this tutorial.

Boot to UEFI Firmware Settings from inside Windows 10

Michael, he can't boot

The only thing I am able to do is boot with the ISO USB drive. Hot keys are not opening BIOS and No option to get to BIOS in the advanced troubleshooting on the front end of the ISO. All I've been able to do has been with the cmd prompt.

Working on getting the info and going to try and run some processes through the day while I'm doubled up on work as a co-worker is out half the day with a Dr's. appointment.
I appreciate those taking their time trying to help me out. Thank you. It may be late afternoon or early evening until I can really focus on my busted boot.
I did find some spec's on the work PC...
I'll be back later today.