Windows 11 Update Failed, then Windows Update failed

[RonLyster]

I was just offered the opportunity to upgrade to Windows 11 in the Release Preview Channel. I gladly accepted the offer. The upgrade downloaded, then installed (seemingly 100%), and then rebooted. Windows came back up and it looked exactly the same as before. I checked Windows Update and I was again offered the opportunity to upgrade to Windows 11. I again accepted the offer, the upgrade downloaded, and the machine rebooted. When it came back up I wasn't surprised - the machine was still a Windows 10 Pro version 21H1 (OS Build 19043.1263) machine.
I then tried a simple Windows Update, and rather than finding any updates Windows Update encountered an error. I retried finding updates many times, but I continued to get the error (0xc1900101). The option to upgrade to Windows 11 has disappeared.
I read that it might help to unplug attached devices. I did that for all but my mouse and keyboard and rebooted. Tried doing Windows Update again and got the same error (0xc1900101).
I went to the Insider Program, clicked on "Get Help," opened a chat, and then was directed to post here. Hope someone can help.
My machine is an Intel NUC with Core i7-10710 processor and 64 GB of RAM. It has Windows Feature Experience Pack 120.2212.3920.0.

[#2]

Dev version. is not stable - quickly switch to the one you were on.

[#3]

@_RBL_ I have selected the Release Preview Channel. I downloaded the ISO (Windows10_InsiderPreview_Client_x64_en-us__19044.iso), but when clicking on it I receive the following message:

If I try to right click on the file then file explorer will restart.  Do I need to go out and buy some writable DVDs?

 

[#4]

I have been offered this by Windows Update. I thought that as a participant in the Release Preview Channel I would only be offered stable Windows 11 versions.

[#5]

I have not changed to the Dev Channel of Windows Insider! I was following _RBL_ 's suggestion to get dev tools turned on so I can turn on the allow usb connections option. I have always been part of the Release Preview Channel.

[#6]

I'm going to look into it more. You should be able to download it and mount the drive and jnstall

[#7]

I don't understand why you're doing this?
After all, you want to have Windows11.

[#8]

And you've watered the attempt to repair system files? https://windowsloop.com/how-to-use-sfc-scannow-command-to-repair-fix-windows-10/#:~:text=Open%20the%....

[#9]

The insider program has .iso files for Windows 11 for the Dev and Beta channels - but not the Release Preview Channel. I downloaded the only available .iso for my channel.

[#10]

I ran sfc /scannow and the program found errors and fixed them with a reboot. I ran sfc /scannow again and conformed all was fixed.

Ran the offered upgrade to Windows 11 again and, as before, all appeared to install BUT nothing actually happened. (This is getting boring.) I then tried doing a simple update and guess what? The update failed. (I thought that was fixed.) Same old 0xc1900101 error. Retried the simple update (not the upgrade) several times - no luck, still the old error code. Just to check and see, I once again ran sfc /scannow and found no errors there.

[#11]

Because your computer is currently working fine, so
do not force optional updates, October 5 is close!

[#12]

Unfortunately that may be the only way to go. It will be chaos if October 5 comes, the problem isn't fixed, and many more Windows 10 users than just me will have this problem....

[#13]

Is there an after-market ISO mount program? I know that mounting ISO files is supposed to be built into Windows 10, but it's not working here.
Also, has anyone kept a list of third-party programs that might interfere with the Windows 11 upgrade? Are there any "offensive" third-party programs that you know about?

[#14]

Please try to update the BIOS - go to the support of the computer manufacturer and download the required drivers :)

[#15]

I regularly use the Intel® Driver & Support Assistant for my NUC. It is always updated to the latest BIOS. I just checked again, and it does have the latest BIOS.  (0053  //  Date: 7/7/2021.)

[#16]

Then uninstall it and try to update it - write what do you think?

[#17]

@A1 

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@A1 wrote:
Then uninstall it and try to update it - write what do you think?

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What is "IT"?  The OS?  Intel's Driver Support Assistant?  Something else? This isn't what "regular" Microsoft users will have to do is it?

[#18]

https://www.microsoft.com/en-us/software-download/windows10
Downloading media creation tools is also a solution idea - you can update while keeping your personal files

[#19]

I assume that on October 5 there will be media creation tools for Windows 11 too, correct? Perhaps that might be located at https://www.microsoft.com/en-us/software-download/windows11?

[#20]

Of course, I wrote about the Intel assistant.
The assistant has the highest privileges and perhaps the process does not close when trying to migrate, but other programs can also cause conflict.

[#21]

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@A1 wrote:
Of course, I wrote about the Intel assistant.
The assistant has the highest privileges and perhaps the process does not close when trying to migrate, but other programs can also cause conflict.

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Whoa!  If that is true, and Microsoft doesn't do something about it, there will be chaos on October 5.

I'll uninstall and re-install as you suggest.  If it helps I'll make a celebratory post here.  (I doubt it will, since I've never had a problem with the Intel product.)