While upgrading to Windows 10 1709 Enterprise via WSUS your clients may report the following error:
(Unable to find resource):ReportingEvent.Client.167; Parameters: Feature update to Windows 10 (business editions), version 1709, en-us
This may happen to other versions too
In this case your IIS may be missing the “.esd” mime type. If so, add it and check for updates again:
1) Go to your WSUS
2) Open IIS, select server’s name and double click on “Mime Types”
3) Add new mime type:
Filename extension: .esd
Mime type: application/octet-stream
4) Click OK and try to search for updates on your computers
Note that if you have many clients they may flood your network (especially 100MB ones) since the update is 3GB+
The problem should be solved.
In theory KB3095113 should had added this mime type. But if you add WSUS role after KB3095113, your IIS will not have .esd mime type and you should add it manually.