Windows Update KB80070643 failed to Install, now Windows is dung

(System details and version at the end)

Before 2021Oct13, I had a working Windows 10 21H1 x64 computer. Then on that day, I started Windows Update. KB5006670 failed to install, and WU backed out the other updates that were installed with it.
I download the *.msu file for this KB, but it also fails.

I go into the event viewer, and every log is hosed;

I run "sfc /scannow" repeatedly and it states errors were found and corrected. sfc never reached the 'no errors found' state.

I run dism and get an Error:50

I then discover my backups are failing because of VSS corruption.

At this time, a couple weeks later I still cannot get that KB installed or clean up my Windows OS.

This installation is just a few months old, because I did a fresh install onto a SSD. I don't want to do a fresh install again because after a history of bad windows updates from Microsoft, I promised myself I would rebuild with Linux next time.

Is there anyway to salvage this OS?


My rig:

Edition Windows 10 Pro
Version 21H1
Installed on ‎2021-‎07-‎17
OS build 19043.1110
Experience Windows Feature Experience Pack 120.2212.3530.0

Device name Win10xxxxx
Full device name Win10xxxxx.xxxxxxxx.local
Processor Intel(R) Xeon(R) CPU X5650 @ 2.67GHz 2.67 GHz
Installed RAM 24.0 GB
Device ID DAE0540F-A8CC-4540-B1F1-xxxxxxxxxxxx
Product ID 00330-80000-00000-AA530
System type 64-bit operating system, x64-based processor
Pen and touch No pen or touch input is available for this display

I would make a full backup of your boot drive with Macrium Backup and Restore with Macrium Reflect then try Repair Install Windows 10 with an In-place Upgrade which will hopefully resolve the problem (try this last after other suggestions in next post).

Make a Macrium Reflect Rescue USB after you install Macrium Reflect.

Did you run dism from a normal Windows bootup with WiFi/ethernet connected? If not, try that first.

And try this next before the other stuff I posted earlier: Reset Windows Update in Windows 10

steve108 said:

I would make a full backup of your boot drive with Macrium Backup and Restore with Macrium Reflect then try Repair Install Windows 10 with an In-place Upgrade which will hopefully resolve the problem (try this last after other suggestions in next post).

Macrium Reflect isn't working due to VSS being broken. Since I did a fresh install onto my SSD a while ago, The Windows 7 Backup isn't working. My plan and hope is to be able to clone my SSD to a HDD before I dig myself deeper in the hole.
Make a Macrium Reflect Rescue USB after you install Macrium Reflect.

Will Do, if possible.

mfaklis said:

Will Do, if possible.

Try the suggestions in my 2nd post first as they are simpler and may resolve the problem.

steve108 said:

Did you run dism from a normal Windows bootup with WiFi/ethernet connected? If not, try that first.

That was how I first attempted, and failed dism. I also retied it just before my post.

And try this next before the other stuff I posted earlier: Reset Windows Update in Windows 10

I did reset WU, but with a different script. I'll try again with the script you referenced.

steve108 said:

And try this next before the other stuff I posted earlier: Reset Windows Update in Windows 10

I downloaded and ran the batch file you indicated. Then after a reboot, I attempted a Windows update. It still coughed-up on KB5006670.

Try sfc and dism again following Run SFC Command in Windows 10

[Solved] DISM Error 50 on Windows 10 try fix 1, and if not resolved, fix 2 to fix dism error

If still not working:
Windows Update KB80070643 failed to Install, now Windows is dung

After dism is fixed, try checking for Windows Updates again.