Failed to deploy update KB5046612 to some Windows servers

Question

I deployed the Windows update KB5046612 to our servers last Friday, but I find that some of them fail to install the update. I see below error:

In the wuauhandler.log:

OnSearchComplete - Failed to end search job. Error = 0x80240438.

Scan failed with error = 0x80240438.

In the updateshandler.log:

Updates scan completion received, result = 0x80240438.

It only shows the error code, but not much useful information beyond that. Do you know how to resolve the issue?

Answer 1

Hi,

Hope you are doing well.

The error code 0x80240438 in the logs indicates that the update source is not found. This could be caused by several reasons, including a misconfiguration of the WSUS server or a firewall issue. To troubleshoot this issue, you can try the following steps:

1,Please verify that the WSUS server is configured correctly, and that the client can communicate with it. Check the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate to find the URL of the WSUS server and try to access it from the client machine.

2,Kindly check the firewall settings on the client machine and the WSUS server to ensure that they are not blocking communication between the two.

3,Also review the WindowsUpdate.log for any additional error messages that may provide more information about the issue.

4,If the issue persists, try resetting the Windows Update Agent data store on the client machine by stopping the Windows Update service, renaming the C:\Windows\SoftwareDistribution folder to C:\Windows\SoftwareDistribution.old, and then starting the Windows Update service again.

Hope above information helps. Should you have any questions or concerns, please do feel free to contact me.

Best regards,

Simon

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