For me is it was because I had two NICs enabled, one was an ethernet NIC the other WiFi. I'm not using the ethernet so it had a 169.254.x.x IP address. I disabled it within Device Manager and now Windows finds and starts downloading the updates without an issue.
20H2 Feature Update Error 0xc1900223
Running Windows 10 1909. When manually checking for updates it attempts to update to Windows 20H2 but fails at the end of "Getting things ready". For some reason it also attempts to update Windows Subsystem for Linux Update 4.19.128 and fails despite that feature being disabled (I'm not sure if it being disabled makes a difference). The two errors are:
There were problems installing some updates, but we'll try again later.
Feature update to Windows 10, version 20H2 - Error 0xc1900223
Windows Subsystem for Linux Update - 4.19.128 - Error 0x80070643
Microsoft-Windows-WindowsUpdateClient logs (attached with a temporary .log extension - change to .evtx) shows an error Event 31 which states Windows Update failed to download an update. I thought maybe it was a network issue but this happens on multiple machines using various different internet connections (corporate and home networks). Running the Windows Update Troubleshooter results in nothing ("Troubleshooting couldn't identify the problem"). Running sfc /scannow shows no issues with the system. Restarts and re-attempts have no impact. I've also included the output from Get-WindowsUpdateLog (timestamps may be different since I captured these on two different attempts). Any thoughts on root cause and solutions are greatly appreciated.
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Yiannis P 1 Reputation point
2021-11-28T06:05:01.54+00:00 I found a solution from another forum that worked for me.
First of all, open this folder – C:\Windows\System32\Drivers\Etc.
Rename the hosts file to hosts.old. You will need administrator privileges to rename the file.
After that open a Command Prompt in admin mode and type the command given below to clear Windows DNS cache:
ipconfig /flushdns
Now try to install the Windows Updates again.
After the Windows Update is completed, rename the hosts.old file to hosts again.
Also, make sure that the hosts file is not blocking the Microsoft Update server addresses.
https://technclub.com/guides/how-to-fix-error-0xc1900223/ -
Peter Parker 1 Reputation point
2022-02-24T07:18:44.493+00:00 Its very common error while windows 10 users try to update their windwos or its set to automatic update. And this could be happen due to many reasons like:
Not associated with Microsoft server
Not associated With CDN and so on..There are many solutions to this windows 10 update error but user have to check which one works for theri system. Few solutions like:
Date and time not correct
Try windows troubleshooter
Maybe DNS cache work
Work with Media creation tool
so on...Find out complete solutions with different methods at error 0xc1900223.
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Angela Lamers 1 Reputation point
2022-06-06T12:32:29.007+00:00 kan mijn windows 10 niet update krijg foutcode 0xc1900223