Win10 Update Error "Operation failed: Update Boot Code. Error: 0x80004005[gle=0x000000b7]"

I have about 25-30 desktop PCs that I am unable to get windows update to complete on.  Some of them are running 1909, a few are running 2004, but none of them will update to 20h2.  The ones running 1909 wouldn't upgrade to 2004 when that came out either.

I have run setupdiag and here is the outcome of that:

Matching Profile found: FindAbruptDownlevelFailure - 55882B1A-DA3E-408A-9076-23B22A0472BD

SetupDiag version: 1.6.0.0

System Information:

Machine Name = BOS

Manufacturer = Dell Inc.

Model = OptiPlex 3070

HostOSArchitecture = 1033

FirmwareType = UEFI

BiosReleaseDate = 20200206000000.000000+000

BiosVendor = 1.3.1

BiosVersion = 1.3.1

HostOSVersion = 10.0.18363

HostOSBuildString = 18362.1.amd64fre.19h1_release.190318-1202

TargetOSBuildString = 10.0.19041.746 (vb_release_svc_prod1.210106-2232)

HostOSLanguageId = 

HostOSEdition = Professional

RegisteredAV = Windows Defender

FilterDrivers = FileInfo

UpgradeStartTime = 1/26/2021 12:19:14 PM

UpgradeEndTime = 1/26/2021 12:31:52 PM

UpgradeElapsedTime = 00:12:38

CV = HWGfItqyI0SWnhx1

ReportId = B466E151-44B3-4339-BBB9-581A63214664

Error: SetupDiag reports abrupt down-level failure.

Last Operation: Finalize

Error: 0x80004005 - 0x60016

LogEntry: 2021-01-26 12:31:39, Error                 SP     Operation failed: Update Boot Code. Error: 0x80004005[gle=0x000000b7]

Refer to "https://docs.microsoft.com/en-us/windows/desktop/Debug/system-error-codes" for error information.

Last Setup Phase:

Phase Name: Finalize

Phase Started: 1/26/2021 12:31:34 PM

Phase Ended: 1/1/0001 12:00:00 AM

Phase Time Delta: 00:00:00

Completed Successfully? False

Last Setup Operation:

Operation Name: Update Boot Code

Operation Started: 1/26/2021 12:31:38 PM

Operation Ended: 1/1/0001 12:00:00 AM

Operation Time Delta: 0:00:00:00.0000000

Completed Successfully? False

I have tried clearing all the temp files, I have blown away the softwaredistribution\download folder and those didn't work.  I have used a usb drive created using the windows media creation tool and done the upgrade that way and it still fails with the same error.

Now, all of these systems have been imaged using Aomei's Backupper program.  I have found some posts that talk about getting this same error when others have imaged drives using different imaging software but no one seems to have fixed it.  They talk about the BCD not being able to be changed.  I'm not familiar  with the BCD and how all that works. 

I am trying very hard not to format and reload these machines as they are mission critical systems all at different customer sites of ours.  But we also need to have windows updates on, for now I had to turn them off because the system were repeatedly trying to install 20h2 like 3 times a day and rebooting the machines. 

I really need help with this.  

Thank you!!!