You’re apparently considered an advanced/wannabe beta tester user if you push the “check for updates” thing in windows update.
“If you click the “Check for Updates” button in the Settings app, Microsoft still considers you a “seeker” and will give you “preview” updates that haven’t gone through the normal testing process.”
HomeGroup sharing removed from Windows 10 (Version 1803)
“HomeGroup” has been removed from the 1803 version (the Windows 10 April
2018 Update) of Windows 10.
So, If you manged to get the whole homegroup thing to work properly in older versions of win10…, and if you’re trying to share something new on your homegroup you might run into some er.. issues.. in short: it won’t work, those options are gone.
Any folder, files, printers that you previously shared using HomeGroup will continue to be shared though.
However, even though it has been removed, you can still share printers and files by using features that are built into Windows 10.