I have about 30 Windows 10 Professional computers. Some domain some standalone. All had problems with the Creator Update.
The first issue is when you go in to Windows Update I see a red warning at the top "*Some settings are hidden or managed by your organization". That is incorrect. I have checked the GPO on several and nothing under Windows Update is set.
From there if you click on "Advanced options" there is the same red warning at the top and "Give me updates for other Microsoft products when I update Windows" is un-checked and grayed-out.
I have tried the registry change (HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate) and the GPEdit change and neither work. The internet is flooded with this problem. Most say it happened at the Anniversary update but some of my workstations are fresh Creator installs. No one seems to have a fix.
I have gotten rid of the warning and was able to check the "Give me updates for other..." but am not sure how. A combination of something. One way or the other whenever I do a Windows Update and it installs the Cumulative 1703 it reverts back. Has anyone found a permanent fix?
rsop.msc
You get all the group Policy. Right Click on Computer Configuration/User Configuration Check any policy related to WSUS Server.