Perhaps check your updates history and see how often it's been updating? Then click on the 'check for updates' button and see if it finds anything, it should do if you've not had it running and connected to the internet this week.... then you too can try your luck with the 'Features update'!
I've just rectified the notification message on the desktop by clicking the restart option in the notification message... it didn't restart, it checked for updates, said there weren't any and cleared the notification message. So that wasn't too painful, but it shouldn't actually have been necessary in the first place. I've given up trying with that laptop though, so Win 10 can bloody well whistle for it's 'Features update'!