> can they possibly test all ...
well no, it would be impossible for them to do it themselves

their customer service is SEVERELY lacking

at answers.microsoft.com, most of the responses from...

--- this is copied form my post
https://www.tenforums.com/network-sharing/29682-network-icon-disappeared-taskbar-after-windows-update-1511-10586-a-2.html#post575512


RESOLUTION - uninstall...

--- UPDATE to my last post

Win10 was doing other weird stuff. All of it happening after the latest update. I felt the need to re-install, but thought it was better to revert to Win7 first, this...

--- @cpa wrote




I went to that answers.microsoft thread, I made a post over there, below is a copy


--- reinstalling the drivers for the network solved the problem for me ---