sfc /scannow WILL NOT function

The Windows system image backup app (like the feature update process) is sensitive to the state of the computer's partitions. Neither of those likes more than one EFI System partition to be present, for instance. But, fine, you've got only one.

Now I'm looking again at your Win 10 Recovery Tools partition of 450 MB. I don't like that it is described as an OEM partition. I think it should say "Recovery Partition" in Disk Management as mine does. Also, I don't like it has only 43 MB of free space....

See what is said in here about the Windows RE Tools partition...

https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-8.1-and-8/hh824839%28v%3dwin.10%29

Configure UEFI/GPT-Based Hard Drive Partitions

"This partition must allocate space for the Windows RE tools image (winre.wim, typically between 250-300MB, depending on base language and customizations added), plus enough free space so that the partition can be captured by backup utilities:"

"If the partition is less than 500 MB, it must have at least 50 MB of free space."

"This partition must use the Type ID: DE94BBA4-06D1-4D40-A16A-BFD50179D6AC. "

So - let us examine it more closely...

(1) Type CMD into Search, & click "Run as administrator".

(2) Enter the following commands...

ReagentC  /Info <<< I expect yours to say partition 5 is the Windows RE location.

DiskPart

Select  Disk  0

List  Part

Select  Part  5

Detail  Part

Exit

Use Ctrl-A & Ctrl-C to copy the result, & paste it here.

Microsoft Windows [Version 10.0.18363.815]

(c) 2019 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>ReagentC /Info

Windows Recovery Environment (Windows RE) and system reset configuration

Information:

    Windows RE status:         Enabled

    Windows RE location:    \?\GLOBALROOT\device\harddisk0*partition4*\Recovery\WindowsRE

    Boot Configuration Data (BCD) identifier: 7f582e78-a2f7-11e9-86db-c6c7375e4034

    Recovery image location:

    Recovery image index:      0

    Custom image location:

    Custom image index:        0

REAGENTC.EXE: Operation Successful.

C:\WINDOWS\system32>DiskPart

Microsoft DiskPart version 10.0.18362.1

Copyright (C) Microsoft Corporation.

On computer: PCRSCOMPUTER

DISKPART> Select Disk 0

Disk 0 is now the selected disk.

DISKPART>List Part

  Partition ###  Type              Size       Offset

  -------------    ------------    -------   -------

  Partition 1      System          99 MB      32 KB

  Partition 2      Reserved       16 MB   100 MB

  Partition 3      Primary        930 GB   116 MB

  Partition 4      Recovery      790 MB   930 GB

DISKPART> Select Part 4                            <<< Yours will be 5

Partition 4 is now the selected partition.

DISKPART> Detail Part

Partition 4

Type    : de94bba4-06d1-4d40-a16a-bfd50179d6ac

Hidden  : No

Required: Yes

Attrib  : 0X8000000000000001

Offset in Bytes: 999374716928

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info

  ----------  ---  -----------  -----  ----------  -------  ---------  --------

* Volume 3         WinRE 1909   NTFS   Partition    790 MB  Healthy    Hidden

DISKPART> Exit

Leaving DiskPart...

Let's see that. We can make your type & attributes look like mine. Hopefully things will go better after that. If not, we can also increase the size of partition 5, but it will require a 3rd-party tool.

I tried to make a system image

The back up failed.

A Volume Shadow Copy Service operation failed. Please check VSS" and "SPP" application event log for more

information. (0X807800A1)

Additional information:

The writer experienced a non-transient error. If the back up process is retied the error is likely to reoccur.

 (0x800423F4)

Error message -

A shadow copy could not be created. Please check "VSS" and "SPP" application event log for more information.

Details: The writer experienced a non-trasient error. If the backup process is retried, the error is likely to reoccur.

I checked the net and was told to start VSS in services.msc. I did. Said to enable SPP Notification Service. But itdoesn't seem to be there.

I tried again and the same thing happened. It suggest to delete the restore points but that's the only thing that

has worked. LOL.

(1) Forget "(Windows 7)". It is unfortunate Microsoft included that in the app's name, probably meaning to say it is the same one that had been used in Win 7. It was removed in Win 8, but my Win 8.1 had it. And everyone got it back in Win 10. But that thing will make an image backup of whateveryour current OS happens to be. So, it's making Win 10 images for me now. It will do so for you as well.

Your Recovery Image (D:) partition is definitely not Win 7. If D: came with the computer, it came with Win 8.1. Normally, such a partition has no letter, & it is an image that would restore the computer to factory state (Win 8.1). Do you have an HP app that makes system images? Then, whatever your OS was at the time of its last use is what is on there.

(2) The other partitions on Disk 0 look OK to me...

(a) Windows RE Tools:  This is your defunct Win 8.1 Recovery Partition. It got left behind after you

                                     upgraded to Win 10. Windows doesn't delete them (only empties it) when

                                     a new one is added.

(b) EFI System:   EFI contains all the files necessary to boot Windows in a UEFI install.

It looks like you are OK with that -- there is only one anywhere.

(c) Microsoft Reserved (MSR):  This one doesn't show up in Disk Management. It can be seen in 

                                                 DiskPart. Normally, it is located just before the Windows partition.

(d) Windows (C:):   Windows 10.

(e) OEM partition (450 MB):  This is the Win 10 Recovery Tools partition. Shift+Restart goes there.

                                              (a) kept the name but is empty.

(f) Recovery Image (D:):   I don't know whether this is a factory reinstall partition (which could get

                                         the computer back to Win 8.1). Normally, those don't

get a letter. Do you

                                         have an HP app making backups? It might be HP's version of File History.

One thing: If you try the upgrade again...

https://docs.microsoft.com/en-us/windows/deployment/upgrade/quick-fixes

Quick Fixes

QF#1 says to unplug extraneous drives, etc., from the USB ports.

(3) "I made a restore point, I've used them before when there was a problem but they seem to disappear when I really need them. Do I need to make a new one after using it? Maybe it was a cleanup glitch I didn't catch."

I mentioned restore points in case you would be updating a bundle of drivers from your computer's site. Then, you could undo it all in one fell swoop with an old enough point. But your site doesn't really have terribly recent drivers. Chances are you've been getting more recent drivers automatically through Windows update. Also drivers can be undone in Device Manager individually.

If you restore a point, a new one is automatically made just beforethe restore (so that you can undo the restore). After doing a restore, I would consider making a new point of my own only if I were about to do a big install involving drivers. But sometimes that is automatic too. Automatic restore points are made just before most Windows updates come in, for instance. I would resort to it only if the update could not be otherwise uninstalled. Same for a big driver install.