Hi, I am having the same frustrating issue as everyone else, my brand new laptop purchased two days ago is stuck in S mode, I was able to manage an update to Version 1803 with windows updates but after that it was stuck.
Read this article this morning:
https://answers.microsoft.com/en-us/windows/forum/all/i-cant-switch-out-of-s-mode/d607094d-7347-4d8d-9cd1-510505c5712d
and it was very helpful in getting me to install version 1903 on the laptop.
I followed his instructions, went here:
https://www.microsoft.com/en-au/software-download/windows10
choose the Download Tool Now option and then the Upgrade this PC option.
Curiously, if you chose the Update Now button then 10S stops it from running. How ironic that Microsoft won't let you upgade your Microsoft!!
Congrats to the hopefully former Microsoft project manager that came up with the 10S concept. And to the Product Marketing team who conceived this moronic idea. I wonder if anyone of them was a former team member on the Vista team (remember that debacle?)
However, whilst I got my laptop to the latest version of Windows 10 Home, sadly it is still in S mode and like everyone else, no matter how many times I try to go to Windows store, reset windows store, troubleshoot windows store, pray to God and sell my
soul to satan, I still cannot get out of S mode.....
Thanks to the poster who gave an update that a fix 'may' be available next week...….