Here is the fix for Windows 11 2022 Update error 0x800f0806

Some Windows administrators who tried to update their Windows 11 devices to the newly released Windows 11 2022 Update reported that they have received the error code 0x800f0806 during the process.
The error is thrown by the cumulative update KB5017321, which Windows 11 attempts to install via Windows Updates. It is a download error, but it is unclear why downloads are blocked with the error code on some systems but not on others.
According to the reports, the error is only thrown on inplace upgrades, but not when the update is installed using other ways.
The solution, therefore, is to pick one of the following update options instead to resolve the update error:
- The cumulative update KB5017321 is hosted on the Microsoft Update Catalog website. Download the cumulative update for the correct Windows 11 version and run it after it has been downloaded. The download has a size between 223 and 302 Megabytes, depending on the operating system version.
- Download and run the Windows 11 Installation Assistant. It is an official Microsoft program to update to the latest version of the Windows 11 operating system. Note that it requires installing and running Microsoft's PC Health app to check for compatibility. Once that is out of the way, you may hit the refresh button in the Windows 11 Installation Assistant program window to start the update to the Windows 11 2022 Update.
The manual installation option listed under (1) is the easier option in most cases: it does not require the downloading of two Microsoft programs to run the update. Windows 11 administrators who run into different kinds of errors when downloading the update files manually may still switch to the Windows 11 Installation Assistant method to resolve the issue.
In any event, it is probably best to wait a month or two before firing up the update engines, as more bugs will likely surface in that time. Ashwin's guide on upgrading Windows 11 using an ISO image is also a good read in the meantime.
Now You: did you install Windows 11 2022 Update already? (via Deskmodder)


There is not still W11 23H2 and these instructions are nonsense by now. :[
It worked for me just fine. You’re probably not following the instructions clearly.
Just tried the password option and the OOBE option and didnt work.
Worked perfectly. Thank OP.
Worked perfectly for me just now. Specifically, the regedit option.
Is this cut and paste from a Microsoft PR paper, because it 1000% BS:
“By listening to user insights, Microsoft has demonstrated its commitment to refining the Windows experience based on real-world needs.”
Windows 11 is proof they don’t give a s*it.
Worked for me just now
I agree! Windows 11 was a downgrade to me and I kept all 8 computers in our family on Windows 10 as a result. They didn’t listen to any customers. The taskbar was THE main reason I stayed away from Windows 11. With 6 monitors, it is impossible to navigate so many browser tabs, without the feature. I will try the new version in the virtual box to see if it is worth it yet.
Microsoft did a terrible job with this implementation.
They simply need to employ the creator of StartAllBack to fix Windows. He is smarter and more talented than the entire campus of Microsoft employees.
lol
Thank you so much! I work in IT and this is extremely useful information!
Thanks man. The second method worked great!
I used the second method, and i got exactly what i expected.
Using the Bypass 2: Use a banned email address email worked fantastically as I had gone to far to use the bypass 1.
I will be back when I next have a problem.
Keep you the great work
W11 File Explorer is the worst crap ever done. W11 is the biggest shame ever.
Just one more reason for me to go to Linux when Windows 10 ages out.
@ MarineRecon,
Be careful which Linux distro you choose. Some of them don’t include the Wayland protocol which is a security issue i.e. apps can copy, paste and inject data without user interaction.
It’s included in Fedora: https://docs.fedoraproject.org/en-US/fedora/latest/system-administrators-guide/Wayland/
How about a DARK MODE for your website? That would be oh so nice.
Something like this : [https://img.justpaste.me/image/8617] maybe?
Done with ‘Dark Reader Extension for ? Firefox’ [https://addons.mozilla.org/en-US/firefox/addon/darkreader/]
This comment was written on [https://www.ghacks.net/windows-11-installation-has-failed-how-to-fix-this-upgrade-error/#comment-4573155}
Definitely NOT! Once you get older and your eyesight starts to fail you’ll positively loathe dark mode.
Not sure what eye problems *you’re* having, but for me the exact opposite is true. Dark Mode is MUCH easier on my Eyes.
BTW- I’m 52, and have worked in IT all my life. Been staring at monitors for hours each day, most days of the week since the late 1980’s.
Microsoft completely ruined File Explorer by converting to XAML/WinUI/whatever new bloated modern garbage. Its worse than it ever was.
i tested it on win10 current edition. speeds up explorer like a charm
SO what is the priority numbers to give preference to ethernet over wireless?
Worked very well happy to have Windows Photo Viewer back in action in Windows-11
Worked for me (registry option) thank god, I can use the search option to find things on my computer again. Thank you so much!
Install Everything Search and dispense with Microsoft’s crappy search tool. https://www.voidtools.com/
Martin wrote an article on it: https://www.ghacks.net/2020/10/09/add-everything-search-to-the-windows-taskbar-for-even-faster-searches/
I presume the text “WindowsCopilot,,” is a typographical error (2023/09/17/how-to-disable-windows-copilot-in-windows/). The broken comment system unfortunately looks like it is populating itself via AI autopilot.
Hopefully, this Windows Copilot nonsense fails even more spectacularly than Cortana. Who requested this? We want all of the UX features removed back in 11, not this copilot nonsense.
I really don’t mind all of these Windows enhancement but Microsoft get one thing very wrong. ‘Opt in’, is far better than seek information and work to disable.
Turn off Windows Copilot entirely is not good enough.
How to uninstall Copilot entirely ?
@ ilev,
Use Gpedit or the registry. Explained in this article: https://www.ghacks.net/2023/09/17/how-to-disable-windows-copilot-in-windows/
With that snake oil salesman Panos gone, hopefully Windows can return to a normal desktop operating system without all the insanity it has right now in Windows 11.
Can we please stop being ‘politically correct’ (lying) and call them ads again instead of ‘suggestions’?
@ Martin,
Does your gpedit hack also turn off all the other “subscribed content” shown in the registry screenshot? Do you happen to know what all those are?