I have found a simple steps to troubleshoot this issue. Works on my 4 different PCs.
(I'm not sure about the English names of Settings app...)
- Settings=>Windows Update=>Other options=>Set delay of Windows Update on max days
- Close Setting
- Wait some time (~1 min)
- Open Settings again=>Windows Update=>click on Resume Windows Update button at the right
- That's all.
Sorry, I have only Pro version. I don't know if the Home version has an option to pause updates.
Just writing to confirm that this solution has worked (so far) in my case too. The update troubleshooter did not find any problems. But when I did this here what happened is that KB4577586 (remove flash player) was installed and MoUsoCoreWorker.exe is now gone from powercfg -requests. And Windows goes into sleep mode again. Hope this will last.
I tried to fix hitting check for updates several times but never showed any. I tried this trick, waited 1 min resume and it comes back with KB4023057 downloaded and installed, UNF****** believable.