Windows update fails with either: Install error - 0x800706be" or "Install error - 0x800706ba"

C

Chip&TheChiltons

I'm running Windows 10 Pro, 1903


The error depends on the update trying to be applied.

For example:

KB4497165 fails with; 0x800706ba

KB4556799 fails with: 0x800706be


I tried downloading the updates directly from the windows update catalog

(e.g. Microsoft Update Catalog)


But those installations failed to installed without giving a reason.


Running the windows update trobleshooter results in:

"A problem prevented the troubleshooter from starting"​

Is there a troubleshooter troubleshooter? (meta-troubleshooter)


Trying to update to 1909 also fails via Windows Update

Downloading the update program directly and trying to run it: (C:\Windows10Upgrade\Windows10UpgraderApp.exe)

looks like its working until 90+% and then it stalls.


I let it sit for a over 48 hours before powering off, at which point my old installation was restored.


I recently tried to update the video driver and it failed, leaving me with no accelerated video.

I was able to fix this problem by doing a System Restore to a week ago. (video driver install fail -- the other problems persist)


sfc /scannow (or /verify) completes with:

Windows Resource Protection found corrupt files but was unable to fix some of them.​

For online repairs, details are included in the CBS log file located at​

windir\Logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log. For offline​

repairs, details are included in the log file provided by the /OFFLOGFILE flag.​


As far as I can tell, the output of CBS.log is clean (no [SR] lines show any errors)


If I run:

dism /Online /Cleanup-Image /CheckHealth​

dism /Online /Cleanup-Image /ScanHealth
dism /Online /Cleanup-Image /RestoreHealth​


None of them show any problems.


Possibly related: I cannot run the system management console anymore (for example device manager, event viewer)
I get a dialog stating that:
This app has been blocked your your protection.
An administrator has blocked you from running this app.
For more information contact the administrator.​

I am the administrator -- I made no such change.
I can get around the problem by either running mmc from an admin command prompt, or other similar.
None of my other Windows computers in my house have this restriction.
I suppose I could give in and reinstall windows -- I'd rather not, it'll take days to reinstall all the software and find all the drivers.

(The event log goes back 10 years -- maybe it's time to reinstall?)


Once I can run the event viewer, I see that there are repeated notifications that the "Cryptographic Services service" has terminated unexpectedly" along with the number of times it did so: (e.g. 88 times)

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