Windows 10 1803 Installing Update KB4343909 - Error 0x800706ba

I apologize in advance if this is not the correct place for this, I'm a bit new here. For the past few days Windows has been trying to install a cumulative update KB4343909 and failing at the initializing stage. I've run sfc and dism trying to locate any errors, and they both return an error saying they detect an issue but cannot fix the problem. From there I attempted to run Microsoft's update troubleshooting tool, which crashes with the following:

Error Code: 0x800706BE
Source: Engine
Context: Restricted

At that point, I gave up and tried manually installing the update. It got about 10% of the way before it's CPU usage dropped to 0 and forward progress stopped. Honestly not sure where to go from here. I've seen there is a new cumulative update that replaces KB4343909, but that did not install properly either. I can rerun tests and attach logs if needed.

Any ideas?

dalchina said:

Hi, welcome to tenforums. The usual approach would be to check the drive/file system and then do an in-place upgrade repair install which keeps almost everything and gives you a build the same as the iso used.

1. First check your disk:
Download and run Hard Disk Sentinel (trial)
Post a screenshot of its GUI using the Insert Image icon above your post.
If all disks are reported as good, continue.

2. Now check your file system:

From an admin command or powershell prompt
[Windows key + X, click command prompt (admin)]
chkdsk C: /F
Your PC will need to restart.
Post back the result, which you can get after a restart as follows:
Read Chkdsk Log in Event Viewer in Windows 10 | Windows 10 Tutorials
or
How to read Event Viewer log for Chkdsk in Windows 10 [Tip] | dotTech
or
How do I see the results of a CHKDSK that ran on boot? - Ask Leo!
Make sure the result is clear or fixed- else do not proceed.

3. An In-place upgrade repair install will fix many things, but not those where the settings are not changed by the procedure, or user account corruption.

For this you need an installation medium with the same base build as you have installed, and x64 if you have a 64 bits OS, else x86 (32 bits).

Repair Install Windows 10 with an In-place Upgrade | Windows 10 Tutorials

Thanks for the reply. Here is the attached screenshot from Hard Drive Sentinel. Everything looks fine.
Attachment 203245

As for checkdisk, it ran after a restart and found no errors. The only reason I haven't tried an inplace upgrade is that I am worried I'll end up having to reinstall all of my programs like on my previous machine. I suppose at this point there isn't much other option though

So an update to this: Still no solution. Tried an in-place upgrade to no change. I've done hours upon hours of digging though, and I've come across this in my logs:

***WARNING*** File C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\netmemorycache.h is not installed on the system
***WARNING*** File C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\netmemorycache.ini is not installed on the system
***WARNING*** File C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\netmemorycache.h is not installed on the system
***WARNING*** File C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\netmemorycache.ini is not installed on the system

I can't find any mention of this anywhere online and while I've tried to run the framework validator, it fails. Could this be somehow related?

After the in place upgrade repair have you reran the scannow and restorehealth commands?

The HD Sentinel link was not able to be opened.
Please post a new link or image.

Perform the following steps:
1) open administrative command prompt and type or copy and paste:
2) sfc /scannow
3) dism /online /cleanup-image /restorehealth
4) chkdsk /scan
5) When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread

6) list the antivirus (always on and manual) and firewall software in use on the computer
7) place the computer in clean boot
https://support.microsoft.com/en-us/...oot-in-windows
8) Open windows updates > view update history > post an image into the thread
9) Click uninstall updates > post an image into the thread
10) Download the update directly from the Microsoft catalog:
Microsoft Update Catalog
11) post an image into the thread after a manual install of the update while in clean boot