I am operating two different PCs both running Windows 10 Professional x64 Build 1803. I know that Microsoft has delayed the update to 1809 because of some problems, but I have also read that the update is supposed to be available now, and that installation can be forced if a user checks for new updates manually in System Control -> Windows Update. However, I have tried clicking the "Check Updates" button in Windows Update, and get the message that my system is up to date.
So my question is: why does Microsoft not offer that update? Is it possible to somehow see the reasons why an update is not available even if cecked manually?
Update (as requested): both of my PCs are on the Semi Anual Targeted stream, so they definitely should get the update. Is there any log file that informs about reasons why no update is applied, possibly incompatible hardware drivers or other software installed that Microsoft is aware of?
Update 2: I also know that I can manually install the update, or reinstall a fresh build 1809, but I want to know if there is a logfile or other mechanisms to examine this in detail.